<P> A red card is used in several different sporting codes . Its meaning differs among sports, but it most commonly indicates a serious offence and often results in a player being permanently suspended from the game (commonly known as an ejection, dismissal, expulsion, removal, or sending - off, often with personal embarrassment). In many sports the ejected player's team cannot replace them and thus must continue the rest of the game with one fewer player, which may be a significant disadvantage . Examples include: </P> <Ul> <Li> Association football: A red card is shown by a referee to signify that a player has been sent off . A player who has been sent off is required to leave the field of play immediately and must take no further part in the game . The player who has been sent off cannot be replaced during the game; his team must continue the game with one player fewer . Only players, substitutes and substituted players may receive a red card . If a goalkeeper receives a red card another player will be allowed to assume goalkeeping duties (teams will usually substitute an outfield player for another goalkeeper if this option is available). A red card will be shown to a player who has committed a serious offense such as violent conduct or an illegal and purposeful obstruction of a goal scoring opportunity for the opposing team . A red card will also be shown to a player who accumulates two yellow cards for more minor offenses . </Li> </Ul> <Li> Association football: A red card is shown by a referee to signify that a player has been sent off . A player who has been sent off is required to leave the field of play immediately and must take no further part in the game . The player who has been sent off cannot be replaced during the game; his team must continue the game with one player fewer . Only players, substitutes and substituted players may receive a red card . If a goalkeeper receives a red card another player will be allowed to assume goalkeeping duties (teams will usually substitute an outfield player for another goalkeeper if this option is available). A red card will be shown to a player who has committed a serious offense such as violent conduct or an illegal and purposeful obstruction of a goal scoring opportunity for the opposing team . A red card will also be shown to a player who accumulates two yellow cards for more minor offenses . </Li> <Dl> <Dd> For more details, see Red card (association football). </Dd> </Dl>

When is a red card issued in soccer
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