Each club is responsible for submitting to UEFA an A list of players (List A) and a B list of players (List B), duly signed by the club and verified, validated and additionally signed by its association. These lists must include the surname, first name, date of birth, shirt number and name (if applicable), nationality and national registration date of all players to be fielded in the competition, as well as the surname and first name of the head coach and first assistant coach. In addition, the lists must include confirmation from the team doctor that all players have undergone the requested medical examination; the team doctor is solely responsible for ensuring that the requested players’ medical examination has been duly performed.
Only players who are duly registered with UEFA by means of List A or B can validly serve pending suspensions.
The club bears the legal consequences for fielding a player who is not named on List A or B, or who is otherwise not eligible to play.
No club may have more than 25 players on List A. As a minimum, eight places are reserved exclusively for "locally trained players" and no club may have more than four "association-trained players" listed in these eight places on List A. List A must specify the players who qualify as being "locally trained", as well as whether they are "club-trained" or "association-trained".
A "locally trained player" is either a "club-trained player" or an "association-trained player".
A "club-trained player" is a player who, between the ages of 15 (or the start of the season during which the player turns 15) and 21 (or the end of the season during which the player turns 21), and irrespective of the player's nationality and age, has been registered with the player's current club for a period, continuous or not, of three entire seasons (i.e. a period starting with the first official match of the relevant domestic championship and ending with the last official match of that relevant domestic championship) or of 36 months. In the context of this paragraph, the season immediately preceding a player’s 15th birthday may be counted if the player's birthday is after the last match of the relevant domestic championship but before or on 30 June (winter championships) or 31 December (summer championships), and the season immediately following the player's 21st birthday may be counted if the player's birthday is on or after 1 July (winter championships) or 1 January (summer championships) but before the first match of the relevant domestic championship.
An "association-trained player" is a player who, between the ages of 15 (or the start of the season during which the player turns 15) and 21 (or the end of the season during which the player turns 21), and irrespective of the player's nationality and age, has been registered with a club or with other clubs affiliated to the same association as that of the player's current club for a period, continuous or not, of three entire seasons (i.e. a period starting with the first official match of the relevant domestic championship and ending with the last official match of that relevant domestic championship) or of 36 months. In the context of this paragraph, the season immediately preceding a player’s 15th birthday may be counted if the player's birthday is after the last match of the relevant domestic championship but before or on 30 June (winter championships) or 31 December (summer championships), and the season immediately following the player's 21st birthday may be counted if the player's birthday is on or after 1 July (winter championships) or 1 January (summer championships) but before the first match of the relevant domestic championship.
If a club has fewer than eight locally trained players on its List A, the maximum number of players that can be registered on this list is reduced accordingly.
List A must be submitted online by 4 August 2026 (23:59 CET); however this list may be amended at any time until 23:59 CET the day before the match, provided that the club’s association confirms in writing that the new players are eligible to play at domestic level by the date of the competition.
Each club is entitled to register an unlimited number of players on List B. The list must be submitted by no later than 23.59 CET on the day before the match in question.
A player may be registered on List B if he is born on or after 1 January 2005 and has, since his 15th birthday, been eligible to play for the club concerned for any uninterrupted period of two years, or a total of three consecutive years with a maximum of one loan period to a club from the same association for a period not longer than one year. Players aged 16 may be registered on List B if they have been registered with the participating club for the previous two years without interruption.
Each club must include at least two goalkeepers on List A and at least three in total (List A and List B combined).
With regard to the definition of a 'season' to be found in Paragraph 20.06 to Paragraph 20.07 of these regulations, as far as the determination of locally trained players is concerned, the relevant dates to be taken into account are those of the relevant domestic championship calendar as originally scheduled, i.e. the prolongation of a domestic championship calendar due to an extraordinary situation, such as in the case of the 2019/20 season, is not taken into account. Furthermore, for the 2020/21 season, the period starting with the first official match of the relevant domestic championship and ending with the last official match of that same national championship is counted as a full season regardless of the actual start and end date due to the extraordinary situation.