Yellow = warning. Two yellows = red. Red = ejection. Red = team plays one player short.
Definition: Yellow = warning. Two yellows = red. Red = ejection. Red = team plays one player short.
Cards introduced 1970 World Cup. Yellow card = warning for serious foul, dissent, time-wasting. Red card = ejection (direct red or two yellows). Red-carded player can't be replaced — team plays 10 vs 11. Suspension follows. Famous red: Zidane's headbutt in 2006 WC final.