New research suggests that Video Assistant Referee (VAR) technology in soccer is useful for preventing obvious mistakes but is not precise enough to give accurate judgements every time. An assistant referee with a flag. Image credit: Chiraphat Phaungmala. VAR was introduced into soccer in 2018 to help referees review decisions for goals, red cards, penalties and offsides. The technology uses film footage from pitch-side cameras, meaning that VAR operators...
