A. 1970
B. 1974
C. 1996
D. None of these
Submitted by: SHAFQAT ALI SIYAL
Yellow and red cards were introduced at the 1970 FIFA World Cup™ in Mexico, and have since become part and parcel of the game. But we would be doing Mr Aston a great disservice if we limited his influence on refereeing and football to his famous brainwave.