what does a red card in champions league mean
Fouls and misconduct (association football) Misconduct will result in the player either receiving a caution (indicated by a yellow card) or being dismissed ("sent off") from the field (indicated by a red card).[1]:38 A dismissed player cannot be replaced; their team is required to play the remainder of the game with one fewer player. A second caution results in the player being dismissed. The referee has considerable discretion in applying the Laws; in particular, the offence of unsporting behavior may be used to deal with most events that violate the spirit of the game, even if they are not listed as specific offences.[1]:123
UEFA Champions League Introduced in 1992, the competition replaced the European Champion Clubs' Cup, or simply European Cup, which had run since 1955, adding a group stage to the competition and allowing multiple entrants from certain countries.[2] The pre-1992 competition was initially a straight knockout tournament open only to the champion club of each country. During the 1990s, the format was expanded, incorporating a round-robin group stage to include clubs that finished runner-up of some nations' top-level league.[2] While most of Europe's national leagues can still only enter their national league champion, Europe's strongest national leagues now provide up to five teams for the competition.[3][4] Clubs that finish next-in-line in each nation's top level league, having not qualified for the UEFA Champions League competition, are eligible for the next-level UEFA Europa League competition.