FC Twente in European football

The UEFA Champions League is an annual club football competition organised by the Union of European Football Associations (UEFA) and contested by top-division European clubs, deciding the competition winners through a round robin group stage to qualify for a double-legged knockout format, and a single leg final. It is one of the most prestigious football tournaments in the world and the most prestigious club competition in European football, played by the national league champions of their national associations.

The UEFA Europa League, formerly the UEFA Cup, is an annual football club competition organised since 1971 by the Union of European Football Associations (UEFA) for eligible European football clubs. It is the second-tier competition of European club football, ranking below the UEFA Champions League and above the UEFA Europa Conference League. The UEFA Cup was the third-tier competition from 1971 to 1999 before the UEFA Cup Winners' Cup was discontinued, and it is still often referred to as the “C3” in reference of this. Clubs qualify for the competition based on their performance in their national leagues and cup competitions.

The UEFA Cup Winners' Cup was a European football club competition contested annually by the winners of domestic cup competitions. The cup was, chronologically, the second seasonal inter-European club competition organised by UEFA. The tournament ran for 39 seasons, with the final edition held in 1998–99, after which it was discontinued.

The UEFA Intertoto Cup, often abbreviated and more known in the German-speaking world as UI Cup and originally called the International Football Cup, was a summer football competition. The competition was discontinued after the 2008 tournament. Teams who originally would have entered the Intertoto Cup now directly enter the qualifying stages of the UEFA Europa League from this point.

The Inter-Cities Fairs Cup, sometimes referred to as the European Fairs Cup, Fairs Cities' Cup, or simply as the Fairs Cup, was a European football competition played between 1955 and 1971. It is often considered the predecessor to the UEFA Cup. The competition was the idea of FIFA vice-president and executive committee member Ernst Thommen, Italian Football Federation president and FIFA executive committee member Ottorino Barassi, and the English Football Association general secretary and president of FIFA from 1961 to 1974, Stanley Rous. As the name suggests, the competition was set up to promote international trade fairs. Friendly games were regularly held between teams from cities holding trade fairs and it was from these games that the competition evolved. The competition was initially only open to teams from cities that hosted trade fairs and where these teams finished in their national league had no relevance. Early competitions also featured a one city, one team rule. After 1964, it was sometimes referred to as the Runners-up Cup, with teams now qualifying based on league position. The winning team received the Noel Beard Trophy, named for the cutler who designed it.