FIFA president Sepp Blatter has called for managers to be allowed two challenges to refereeing decisions during a match - a move which would lead to a revolution in how the game is played.
Blatter suggested that immediate reviews of television evidence should be allowed for up to two challenges by each manager. The International FA Board, the game's law-making body, would have to agree to any such move and would take at least 18 months for a first decision.
Speaking at the FIFA Congress in Sao Paulo, Blatter told delegates: "We could do something more on the field of play.
"Why don't we give team managers the possibility of two challenges for refereeing during the match? If the manager disagrees with a decision why should he not ask for an immediate TV review with the referee?"