
Yellow card
A yellow card is a disciplinary warning given by a referee in sports like soccer or rugby. It signals that a player has committed a foul or misconduct serious enough to warrant caution but not enough for immediate ejection. Receiving a yellow card serves as a formal warning; if a player receives two yellow cards in the same game, it results in a red card and expulsion from the match. Yellow cards help enforce fair play, encourage players to adhere to the rules, and maintain order on the field.