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Referee (association football)

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Malang Diedhiou refereeing during a 2018 World Cup match
Malang Diedhiou refereeing during a 2018 World Cup match

In association football, the referee is the person responsible for interpreting and enforcing the Laws of the Game during a match. The referee is the final decision-making authority on all facts connected with play, and is the match official with the authority to start and stop play and impose disciplinary action against players and coaches during a match.

At most levels of play, the referee is assisted by two assistant referees (formerly known as linesmen), who advise the referee on whether the ball leaves the playing area and any infringements of the Laws of the Game occurring outside of the view of the referee. The final decision on any decision of fact rests with the referee, who has authority to overrule an assistant referee. At higher levels of play, the referee may also be assisted by a fourth official who supervises the teams' technical areas and assists the referee with administrative tasks, and, at the very highest levels, additional assistant referees and/or video assistant referees. Referees and other game officials are licensed and trained by its member national organisations.

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Association football

Association football

Association football, more commonly known as football or soccer, is a team sport played between two teams of 11 players who primarily use their feet to propel a ball around a rectangular field called a pitch. The objective of the game is to score more goals than the opposite team by moving the ball beyond the goal line into a rectangular-framed goal defended by the opposing side. Traditionally, the game has been played over two 45-minute halves, for a total match time of 90 minutes. With an estimated 250 million players active in over 200 countries and territories, it is considered the world's most popular sport.

Laws of the Game (association football)

Laws of the Game (association football)

The Laws of the Game are the codified rules of association football. The laws mention the number of players a team should have, the game length, the size of the field and ball, the type and nature of fouls that referees may penalise, the offside law, and many other laws that define the sport. During a match, it is the task of the referee to interpret and enforce the Laws of the Game.

Assistant referee (association football)

Assistant referee (association football)

In association football, an assistant referee is an official empowered with assisting the referee in enforcing the Laws of the Game during a match. Although assistants are not required under the Laws, at most organised levels of football the match officiating crew consists of the referee and at least two assistant referees. The responsibilities of the various assistant referees are listed in Law 6, "The Other Match Officials". In the current Laws the term "assistant referee" technically refers only to the two officials who generally patrol the touchlines, with the wider range of assistants to the referee given other titles.

Video assistant referee

Video assistant referee

The video assistant referee (VAR) is a match official in association football who reviews decisions made by the referee.

Powers and duties

The referee carries a yellow card and a red card, to indicate respectively a caution for misconduct or to send-off a player. The coloured cards were introduced by Ken Aston, a former chair of the FIFA Refereeing Committee
The referee carries a yellow card and a red card, to indicate respectively a caution for misconduct or to send-off a player. The coloured cards were introduced by Ken Aston, a former chair of the FIFA Refereeing Committee
The referee carries a yellow card and a red card, to indicate respectively a caution for misconduct or to send-off a player. The coloured cards were introduced by Ken Aston, a former chair of the FIFA Refereeing Committee

The referee's powers and duties are described by Law 5 of the Laws of the Game.[1] The referee:

Overall
  • enforces the Laws of the Game
  • controls the match in cooperation with the other match officials
  • acts as timekeeper, keeps a record of the match and provides the appropriate authorities with a match report, including information on disciplinary action and any other incidents that occurred before, during or after the match
  • supervises and/or indicates the restart of play
Advantage
  • allows play to continue when an offence occurs and the non-offending team will benefit from the advantage, and penalises the offence if the anticipated advantage does not ensue at that time or within a few seconds
Disciplinary action
  • punishes the more serious offence, in terms of sanction, restart, physical severity and tactical impact, when more than one offence occurs at the same time
  • takes disciplinary action against players guilty of cautionable and sending-off offences
  • has the authority to take disciplinary action from entering the field of play for the pre-match inspection until leaving the field of play after the match ends (including kicks from the penalty mark). If, before entering the field of play at the start of the match, a player commits a sending-off offence, the referee has the authority to prevent the player taking part in the match (see Law 3.6); the referee will report any other misconduct
  • has the power to show yellow or red cards and, where competition rules permit, temporarily dismiss a player, from entering the field of play at the start of the match until after the match has ended, including during the half-time interval, extra time and kicks from the penalty mark
  • takes action against team officials who fail to act in a responsible manner and warns or shows a yellow card for a caution or a red card for a sending-off from the field of play and its immediate surrounds, including the technical area; if the offender cannot be identified, the senior coach present in the technical area will receive the sanction. A medical team official who commits a sending-off offence may remain if the team has no other medical person available, and act if a player needs medical attention
  • acts on the advice of other match officials regarding incidents that the referee has not seen

As well as other various duties and powers described fully in Law 5 of the Laws of the Game.

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Regulation

Referees and assistant referees are regulated at a national level. FIFA requires that each national organisation establish a referees committee composed of former officials that has authority over refereeing in that territory.[2] FIFA also mandate that referees pass tests to show sufficient physical fitness and knowledge of the Laws of the Game, as well as an annual medical.[2] Generally, referees are required to have greater experience in order to officiate higher level matches (see, for example, the multiple tiers of refereeing in England). The most elite officials, those who are permitted to officiate international games, are listed on the FIFA International Referees List.

Kit and equipment

John Langenus refereeing the first World Cup final in 1930
John Langenus refereeing the first World Cup final in 1930

Referees wear a kit distinguishing themselves from the players. Usually this comprises a shirt of a different colour to the players of both teams.

In the early 20th century, referees wore a blazer rather than a shirt similar to that of the players. Traditionally that uniform was almost always all black, unless one of the teams was wearing a very dark shirt in which case the referee would wear another colour (usually red) to distinguish themself from both teams.

At the 1994 World Cup finals, new shirts were introduced that gave officials a choice of burgundy, yellow or white, and at the same time the creation of the Premier League in England saw referees wear green jerseys: both changes were motivated by television considerations. Since then, most referees have worn either yellow or black, but the colours and styles adopted by individual associations vary greatly. For international contests under the supervision of FIFA, Adidas uniforms are worn because Adidas is the current sponsor. FIFA allows referees to wear five colours: black, red, yellow, green and blue. Along with the jersey, referees are required to wear black shorts, black socks (with white stripes in some cases), and black shoes. The badge, which displays the referee's license level and year of validity, is often affixed to the left chest pocket.

All referees carry a whistle, a watch, penalty cards, a data wallet with pen and paper, and a coin for determining which team has the choice of ends or kick-off. Most are encouraged to have more than one of each on them in case they drop a whistle or a pen runs out and so on. Often, referees utilise two watches so that they can use one to calculate time lost for stoppages for the purposes of added time. At the highest levels, referees wear a full duplex radio with customised headset to communicate between with their assistants, and assistant referees use electronic flags, which send a signal to the referee when a button is pushed.[3][4] In matches with goal-line technology, referees will have on their person a device to receive the system's alerts.[5]

Whistle

Referees use a whistle to help them control matches. The whistle is sometimes needed to stop, start or restart play but should not be used for all stoppages, starts or restarts. FIFA's Laws of the Game document gives guidance as to when the whistle should and should not be used.[6] Overuse of the whistle is discouraged since, as stated in the Laws, "A whistle which is used too frequently unnecessarily will have less impact when it is needed."[6] The whistle is an important tool for the referee along with verbal, body and eye communication.

Before the introduction of the whistle, referees indicated their decisions by waving a white handkerchief. The whistles that were first adopted by referees were made by Joseph Hudson at Mills Munitions in Birmingham, England. The Acme Whistle Company (based at Mills Munitions Factory) first began to mass-produce pea whistles in the 1870s for the Metropolitan Police Force. It is frequently stated the referee's whistle was first used in a game between Nottingham Forest and Sheffield Norfolk in 1878; however the last such fixture known to have taken place between the two clubs was in 1874. The Nottingham Forest account book of 1872 apparently recorded the purchase of an "umpire's whistle" and in 1928 an article by R M Ruck about his playing days in the early 1870s referred to the use of a whistle by umpires to indicate an infringement.[7]

The whistle was not mentioned in the Laws of the Game until 1936 when an IFAB Decision was added as footnote (b) to Law 2, stating "A Referee's control over the players for misconduct or ungentlemanly behaviour commences from the time he enters the field of play, but his jurisdiction in connection with the Laws of the Game commences from the time he blows his whistle for the game to start."[8]

In 2007, when IFAB greatly expanded the Laws of the Game, an Additional Instructions section became available, which is a full page of advice on how and when the whistle should be used as a communication and control mechanism by the referee.[9]

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John Langenus

John Langenus

John Langenus was a Belgian football referee, who officiated for FIFA in three World Cup competitions, including the first ever Final match in 1930.

Alireza Faghani

Alireza Faghani

Alireza Faghani is an Iranian international football referee who has been officiating in the Persian Gulf Pro League for several seasons and has been on the FIFA list since 2008. Faghani has refereed important matches such as the 2014 AFC Champions League Final, the 2015 AFC Asian Cup Final, the 2015 FIFA Club World Cup Final, the 2016 Olympic football final match. He has refereed matches in the 2017 Liga 1, 2017 FIFA Confederations Cup, 2018 FIFA World Cup in Russia, 2019 AFC Asian Cup in UAE and the 2022 FIFA World Cup in Qatar. Alireza migrated to Australia to referee for Australia A-League in September 2019.

Blazer

Blazer

A blazer is a type of jacket resembling a suit jacket, but cut more casually. A blazer is generally distinguished from a sport coat as a more formal garment and tailored from solid colour fabrics. Blazers often have naval-style metal buttons to reflect their origin as jackets worn by boating club members.

1994 FIFA World Cup

1994 FIFA World Cup

The 1994 FIFA World Cup was the 15th FIFA World Cup, the world championship for men's national soccer teams. It was hosted by the United States and took place from June 17 to July 17, 1994, at nine venues across the country. The United States was chosen as the host by FIFA on July 4, 1988. Despite soccer's relative lack of popularity in the host nation, the tournament was the most financially successful in World Cup history. It broke tournament records with overall attendance of 3,587,538 and an average of 68,991 per game, marks that stood unsurpassed as of 2022 despite the expansion of the competition from 24 to 32 teams starting with the 1998 World Cup.

Premier League

Premier League

The Premier League is the highest level of the men's English football league system. Contested by 20 clubs, it operates on a system of promotion and relegation with the English Football League (EFL). Seasons typically run from August to May with each team playing 38 matches. Most games are played on Saturday and Sunday afternoons, with occasional weekday evening fixtures.

Penalty card

Penalty card

Penalty cards are used in many sports as a means of warning, reprimanding or penalising a player, coach or team official. Penalty cards are most commonly used by referees or umpires to indicate that a player has committed an offence. The official will hold the card above their head while looking or pointing towards the player that has committed the offence. This action makes the decision clear to all players, as well as spectators and other officials in a manner that is language-neutral. The colour or shape of the card used by the official indicates the type or seriousness of the offence and the level of punishment that is to be applied. Yellow and red cards are the most common, typically indicating, respectively, cautions and dismissals.

Coin flipping

Coin flipping

Coin flipping, coin tossing, or heads or tails is the practice of throwing a coin in the air and checking which side is showing when it lands, in order to choose between two alternatives, heads or tails, sometimes used to resolve a dispute between two parties. It is a form of sortition which inherently has two possible outcomes. The party who calls the side that is facing up when the coin lands wins.

Goal-line technology

Goal-line technology

In association football, goal-line technology is the use of electronic aid to determine if a goal has been scored or not. In detail, it is a method used to determine when the ball has completely crossed the goal line in between the goal-posts and underneath the crossbar with the assistance of electronic devices and at the same time assisting the referee in awarding a goal or not. The objective of goal-line technology (GLT) is not to replace the role of the officials, but rather to support them in their decision-making. The GLT must provide a clear indication as to whether the ball has fully crossed the line, and this information will serve to assist the referee in making their final decision.

Whistle

Whistle

A whistle is an instrument which produces sound from a stream of gas, most commonly air. It may be mouth-operated, or powered by air pressure, steam, or other means. Whistles vary in size from a small slide whistle or nose flute type to a large multi-piped church organ.

Joseph Hudson (inventor)

Joseph Hudson (inventor)

Joseph Hudson (1848–1930) was an inventor in Birmingham, England during the late 19th century and the founder of J Hudson & Co in 1870, later to become the world largest whistle manufacturer.

Nottingham Forest F.C.

Nottingham Forest F.C.

Nottingham Forest Football Club is an association football club based in West Bridgford, Nottinghamshire, England. The club was founded in 1865 and have played their home games at the City Ground, on the banks of the River Trent, since 1898. Forest are one of four English clubs to have won the European Cup/UEFA Champions League more than once and one of two English clubs to have won the competition back-to-back. Forest have two stars above their club crest to commemorate their two European Cup victories. The club competes in the Premier League, the top division of the English football league system.

International Football Association Board

International Football Association Board

The International Football Association Board (IFAB) is the body that determines the Laws of the Game of association football. IFAB was founded in 1886 to agree standardised Laws for international competition, and has since acted as the "guardian" of the internationally used Laws. Since its establishment in 1904, FIFA, the sport's top governing body, has recognised IFAB's jurisdiction over the Laws. IFAB is known to take a highly conservative attitude regarding changes to the Laws of the Game.

History

Referees in football were first described by Richard Mulcaster in 1581.[10] In this description of "foteball" he advocates the use of a "judge over the parties". In the modern era, referees are first advocated in English public school football games, notably Eton football in 1845.[11] A match report from Rochdale in 1842 shows their use in a football game between the Bodyguards Club and the Fearnought Club.[11]

In the early years of the codified sport it was assumed that disputes could be adequately settled by discussion between gentlemen players who would never deliberately commit a foul. However, as play became more competitive, the need for officials grew. Initially there existed two umpires, one per team, who could be appealed to with the referee (the game's timekeeper) being "referred" to if the umpires couldn't agree.[12]

The promotion of referees to the dominant position they occupy today, and the reformation of umpires into the linesmen role, occurred as part of a major restructuring of the laws in 1891.[12]

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Medieval football

Medieval football

Mob football is a modern term used for a wide variety of the localised informal football games which were invented and played in England during the Middle Ages. Alternative names include folk football, medieval football and Shrovetide football. These games may be regarded as the ancestors of modern codes of football, and by comparison with later forms of football, the medieval matches were chaotic and had few rules.

Richard Mulcaster

Richard Mulcaster

Richard Mulcaster is known best for his headmasterships of Merchant Taylors' School and St Paul's School, both then in London, and for his pedagogic writings. He is often regarded as the founder of English language lexicography. He was also an Anglican priest.

English public school football games

English public school football games

During the early modern era pupils, former pupils and teachers at English public schools developed and wrote down the first codes of football, most notably the Eton College (1815) and Aldenham school (1825) football rules. The best-known of these is rugby football (1845). British public schools football also directly influenced the rules of association football.

Eton College

Eton College

Eton College is a public school in Eton, Berkshire, England. It was founded in 1440 by Henry VI under the name Kynge's College of Our Ladye of Eton besyde Windesore, making it the 18th-oldest school in the Headmasters' and Headmistresses' Conference (HMC). Originally intended as a sister institution to King's College, Cambridge, Eton is particularly well-known for its history, wealth, and notable alumni.

Rochdale

Rochdale

Rochdale is a town in Greater Manchester, England, at the foothills of the South Pennines in the dale on the River Roch, 5.3 miles (8.5 km) northwest of Oldham and 9.8 miles (15.8 km) northeast of Manchester. It is the administrative centre of the Metropolitan Borough of Rochdale, which had a population of 211,699 in the 2011 census.

Assistant referee (association football)

Assistant referee (association football)

In association football, an assistant referee is an official empowered with assisting the referee in enforcing the Laws of the Game during a match. Although assistants are not required under the Laws, at most organised levels of football the match officiating crew consists of the referee and at least two assistant referees. The responsibilities of the various assistant referees are listed in Law 6, "The Other Match Officials". In the current Laws the term "assistant referee" technically refers only to the two officials who generally patrol the touchlines, with the wider range of assistants to the referee given other titles.

Positioning and responsibilities

Diagram of the diagonal system of control showing the paths of the Referee (R) and the Assistant Referees (AR)
Diagram of the diagonal system of control showing the paths of the Referee (R) and the Assistant Referees (AR)

The predominant system of positioning and division of responsibility used by football match officials throughout the world is known as the Diagonal system of control (DSC).

The referee has final decision-making authority on all matters. The referee is assisted by two assistant referees who advise the referee. An assistant referee's judgement is enforced only if the referee accepts that judgement, and the referee has the authority to unilaterally overrule an assistant referee. The referee is the only official empowered with starting and stopping play, and meting out disciplinary actions such as cautions or send-offs.

The two assistant referees are instructed by the referee to each patrol half of a single touchline on opposite sides of the field. For example, on a field running north–south, one assistant referee (AR) would run on the eastern touchline from the north goal line to the halfway line, while the other assistant referee would run on the western touchline from the south goal line to the halfway line. In general, the assistant referees' duties would be to indicate (using their flags) when an offside offence has occurred in their half, when a ball has left the pitch, and if a foul has been executed out of the view of the referee (typically in their quadrant of the field). Generally, the ARs will position themselves in line with either the second to last opponent or the ball – whichever is closer to the goal line – to better judge offside infractions. However, the assistant referee will have specific positioning with respect to corner kicks, penalty kicks, and throw-ins.

The referee patrols the length of the field to cover the ground not covered by their two assistants, generally running in a diagonal pattern from the southeast quadrant of the field towards the northwest quadrant; hence the term "diagonal system of control" (DSC). Note that this pattern is not a specific route but a general guideline that should be modified to the style of play, nature of the game, the location of play at a given time, etc. In some cases the referee may even exit the field if it aids in their decision-making ability. The main idea is that the referee and assistants using the DSC should be able to position themselves quickly and easily to observe the important aspects of play (offside, ball in or out of play, goal-scoring opportunities, challenges for the ball) from multiple angles with multiple sets of eyes.

Note that the description above refers to a left diagonal system of control, known as "running a left" or "standard diagonal". If, before the match, the centre referee on this field decides to run from southwest to northeast, then the assistants must position themselves accordingly and the result will be a right diagonal system of control, otherwise referred to as "running a right" or "reverse diagonal".

In many cases in England, referees use more of a 'curve' based on a line running from the edge of the 18 yard box, and when near the centre circle they then curve to a line level with the other 18 yard box line. This is similar to the diagonal system, but with the speed of modern football it is easier to keep up with play. This also helps the referee avoid being in a common "passing lane" through the centre circle itself.

In international matches the left-wing diagonal shown above has been universal since the 1960s. It is now predominant across the world. England until recently was an exception to this convention. Until 1974 referees in the Football League were required to run both diagonals during a match, most opting to run from right wing to right wing in the first half before switching to the left-wing diagonal for the second half. The chief reason for this alternation was to avoid linesmen wearing down the same part of the touchline during matches – this was important given the generally lower quality of pitches at the time. However switching diagonal was also justified in terms of allowing officials to patrol different areas of the field during games. From the 1974–75 season English referees were allowed to run the same diagonal throughout the same match. Most initially opted for the right-wing diagonal although over the years the left-wing diagonal became increasingly popular and the preferred choice of most referees by the early 2000s. From 2007–08 the left-wing diagonal has been mandatory in English professional football although some referees at lower levels still use the opposite approach.

Its implementation as a standard practice for referees is attributed to Sir Stanley Rous, former referee and President of FIFA from 1961 to 1974.[13]

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Offside (association football)

Offside (association football)

Offside is one of the laws in association football, codified in Law 11 of the Laws of the Game. The law states that a player is in an offside position if any of their body parts, except the hands and arms, are in the opponents' half of the pitch, and closer to the opponents' goal line than both the ball and the second-last opponent.

Corner kick

Corner kick

A corner kick is the method of restarting play in a game of association football when the ball goes out of play over the goal line, without a goal being scored and having last been touched by a member of the defending team. The kick is taken from the corner of the field of play nearest to the place where the ball crossed the goal line.

Penalty kick (association football)

Penalty kick (association football)

A penalty kick is a method of restarting play in association football, in which a player is allowed to take a single shot at the goal while it is defended only by the opposing team's goalkeeper. It is awarded when an offence punishable by a direct free kick is committed by a player in their own penalty area. The shot is taken from the penalty mark, which is 11 m from the goal line and centred between the touch lines.

Throw-in

Throw-in

A throw-in is a method of restarting play in a game of association football when the ball has exited the side of the field of play. It is governed by Law 15 of The Laws of the Game. In Scotland it is known as a "shy".

1974–75 in English football

1974–75 in English football

The 1974–75 season was the 95th season of competitive football in England.

2007–08 in English football

2007–08 in English football

The 2007–08 season was the 128th season of competitive football in England.

Stanley Rous

Stanley Rous

Sir Stanley Ford Rous was an English football referee and the 6th President of FIFA, serving from 1961 to 1974. He also served as secretary of the Football Association from 1934 to 1962 and was an international referee.

FIFA

FIFA

The Fédération internationale de football association is the international governing body of association football, beach soccer, and futsal. It was founded in 1904 to oversee international competition among the national associations of Belgium, Denmark, France, Germany, the Netherlands, Spain, Sweden and Switzerland. Headquartered in Zürich, Switzerland, its membership now comprises 211 national associations. These national associations must each also be members of one of the six regional confederations into which the world is divided: CAF (Africa), AFC, UEFA (Europe), CONCACAF, OFC (Oceania) and CONMEBOL.

Other systems of control

While the Laws of the Game mandate a single referee with assistants as described above, other systems are authorized either experimentally or explicitly by some governing organizations.

Dual system (2 referees)

The dual system, has two referees with no assistants.[14] The system is used some matches played under the rules of the National Federation of State High School Associations (NFHS) in the United States, and in other youth or amateur matches. Both referees have equal authority, and the decision of one referee is binding on the other. Each referee is primarily responsible for a specific area of the field similar to those of the assistant referees in the diagonal system, except that the referees are allowed and encouraged to move away from the touch line into the field, particularly as play approaches the goal lines. Like the assistant referees in the diagonal system, each referee is responsible for patrolling one touch line and one goal line and determining possession for the restart if the ball goes out of play on either of those two boundaries.[15]

Positioning in the dual system is similar to that used by officials in basketball: each referee is either termed the "lead" or the "trail", depending on the direction of the attack. If the attack is against the goal to the referee's right (when facing the field from their assigned touch line), then that referee is the lead, and the other is the trail. The lead is positioned ahead of the play, even with the second-to-last defender to the extent possible, while the trail is positioned behind the play. Both are responsible for calling fouls and misconduct and determining the restart when the ball goes out of play on one of their assigned boundary lines. Since the lead is in a better position to determine offside, the lead is responsible for calling offside, while the trail provides an extra monitor for fouls and misconduct while the lead's attention is focused on offside. When the attack changes direction, the trail becomes the lead and vice versa.[15]

Double dual system (3 referees)

The double dual system uses three referees, all equipped with whistles, positioned much as in the traditional diagonal system of control mandated by IFAB.[16] Each referee has the same authority for decision making.[17] It is authorized in the United States for college and high school matches although it is rarely used.

Source: "Referee (association football)", Wikipedia, Wikimedia Foundation, (2023, March 7th), https://en.wikipedia.org/wiki/Referee_(association_football).

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See also
References
  • The Man in Black: History of the Football Referee, Gordon Thomson, Prion Books Ltd, 14 October 1998, ISBN 1-85375-284-3
  • LOTG (1 January 2021). Laws of the Game 2020/2021 (PDF).
  1. ^ "Laws of the Game 21/22". IFAB.
  2. ^ a b "Regulations on the organisation of refereeing in FIFA Member Associations, section 10" (PDF). Retrieved 19 May 2021.
  3. ^ Solomon, Jon (10 July 2012). "SEC will try wireless communication for football officials in 2012". AL.com. Retrieved 13 May 2014. wireless communication ... a concept used by international soccer referees for several years
  4. ^ "Electronic Flags" (PDF). United States Soccer Federation. Archived from the original (PDF) on 18 October 2011. Retrieved 13 May 2014.
  5. ^ Weir, Keith (8 August 2013). "Premier League unveils goalline technology to end disputes". Reuters. Retrieved 13 May 2014.
  6. ^ a b Laws of the Game 2012/2013 (PDF). FIFA. p. 80. Archived from the original (PDF) on 2 December 2012. Retrieved 20 May 2013.
  7. ^ "Story of the Referee's Whistle". Martin P Wilson. 24 April 2011. Retrieved 30 January 2012.
  8. ^ IFAB Meeting Minutes, 1936.
  9. ^ Laws of the Game 2009/2010 (PDF). FIFA. p. 76. Archived from the original (PDF) on 10 July 2009. Retrieved 4 August 2010.
  10. ^ "Archived copy". Archived from the original on 27 September 2006. Retrieved 11 April 2007.{{cite web}}: CS1 maint: archived copy as title (link)
  11. ^ a b J. A. Mangan (1999). Sport in Europe: Politics, Class, Gender. p. 105. ISBN 9780714649467. Retrieved 18 July 2016.
  12. ^ a b "History of the Laws of the Game - From 1863 to the Present Day". FIFA.com. 1 July 2016. Archived from the original on 25 December 2012. Retrieved 18 July 2016.
  13. ^ Rewriting the Laws of the Game (19 June 1997), also mention of the diagonal system of control for referees: FIFA.com website.
  14. ^ Vogt, Randy (24 August 2012). "The Two-Ref System: Its Flaws and How to Cope". Soccer America. Retrieved 6 March 2014.
  15. ^ a b Yannie, Noah. "Soccer Officiating Dual System of Control" (PDF). NISOA. Archived (PDF) from the original on 7 March 2014. Retrieved 6 March 2014.
  16. ^ HS Soccer: Double Dual or Three Whistle System of Control (podcast). 20 February 2012. Retrieved 25 July 2019.
  17. ^ "Systems of Control". National Intercollegiate Soccer Officials Association. 22 October 2016. Retrieved 19 July 2019.

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