Blatter wants managerial 'challenges'
FIFA president Sepp Blatter has proposed that managers be allowed to challenge referee decisions during games.
Blatter, speaking in Sao Paulo at FIFA's annual congress, suggested that bosses could be given two challenges per match.
He 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?"
Blatter has previously claimed that goal-line technology would be the only camera review of decisions he would support, but the Swiss appears to have changed his mind in suggesting a system that is already used in sports like American football, baseball and tennis.
Such a change to football's rules would require the backing of the International Football Association Board (IFAB), the game's lawmaker, and would take at least 18 months to ratify.