Pierluigi Collina says there will be further trials of a challenge system as part of a two-year review of VAR.
Corners and second yellow cards are added to the scope of the video assistant referee for this summer's World Cup.
Video Assistant Referee (VAR) technology is to be used in Northern Ireland domestic football for the first time in next month's BetMcLean Cup final between Linfield and Glentoran at Windsor Park.