The Video Assistant Referee, or VAR, is a system used in football (soccer) to help on-field referees review certain decisions using video replays.
What VAR Can Review
VAR is typically limited to four categories: goals and whether there was an infringement in the build-up, penalty decisions, direct red card incidents, and cases of mistaken identity when giving a card.
How a Review Happens
A team of video officials watches the match from a separate room and can alert the on-field referee to a possible error. The referee can accept the recommendation, or in some cases go to a pitch-side monitor to review the incident personally before making a final decision.
Why It Is Controversial
Even with video replays, judgment calls like handball or foul severity remain subjective, so VAR does not eliminate controversy entirely. Long review pauses have also been criticized for disrupting the flow of matches.