FIFA Approves Semi-Automated Offside Technology Trial; Here’s How It Works
World soccer's governing body FIFA will test its semi-automated offside technology at the Arab Cup 2021 which begins in Qatar on Tuesday, with Chief Refereeing Officer Pierluigi Collina saying the competition represented its most important trial so far.
The technology is based on limb tracking and provides the Video Assistant Referee (VAR) with information before the on-field official takes a final call.