FIFA president Sepp Blatter said Monday he wants to start trials on giving coaches the right to "challenge" referee decisions during a match.

The system, backed by television monitors, could be tried at the LInder-20 World Cup in New Zealand next year and Blatter said he would like to find a national league to test the challenge.

Blatter first raised the idea at the FIFA congress in June but he told the Soccerex conference in Manchester he would now propose the move to the International Board, football's lawmaking body.