How VAR Actually Works

The Video Assistant Referee entered the Laws of the Game in 2018 after two years of trials, and made its World Cup debut at Russia 2018 — where it promptly decided a final, awarding France a penalty for Ivan Perišić’s handball. Every World Cup since has expanded the toolkit: Qatar 2022 introduced semi-automated offside, with limb-tracking cameras and a sensor in the ball, and by 2026 every goal at the tournament passed through a layered check most fans never see.

The system’s founding promise was minimal interference for maximum correction: fix the scandals, leave the game alone. The tribunal’s entire case file is, in one sense, an argument about whether that promise has been kept.

The protocol grants the video room exactly four doors into a match, and not one more:

• Goal / no goal — including any offence by the attacking team anywhere in the build-up: offside, handball, a foul, the ball out of play.
• Penalty / no penalty — awards that shouldn’t have been given, and fouls in the box that went unpunished.
• Direct red cards — violent conduct, serious foul play, denying an obvious goalscoring opportunity. Not second yellows.
• Mistaken identity — when the referee cards or penalises the wrong player.

That fourth category is the rarest and produced one of the strangest decisions in this archive: the quarterfinal review that moved a yellow card from Leandro Paredes to Breel Embolo — whose earlier booking turned it into a red. VAR cannot review a second yellow, but it can re-decide who committed the offence, and the arithmetic does the rest.

Most VAR activity is invisible. Every goal, every penalty incident and every possible red card is checked silently while play continues or the celebration runs; if the check finds nothing, nothing is shown, and the match never knows it was examined. Fans often read that silence as negligence — in protocol terms it means the opposite: the incident was looked at and cleared.

A check escalates only when the VAR believes the on-field call was a clear and obvious error (or a serious missed incident). For factual matters — offside lines, the ball out of play — the VAR simply tells the referee the answer. For judgement calls, the referee is sent to the pitchside monitor to look again, and overwhelmingly stays with what the video room flagged. The threshold is the system’s load-bearing wall: debatable is not reviewable. A soft penalty given live usually survives, and a soft penalty denied live usually stays denied — deference cuts both ways, as the Egypt appeals that never got a review learned in the hardest possible way.

When a goal is scored, VAR may review the entire attacking possession phase — from the moment the scoring team won the ball until it crossed the line. Any attacking offence inside that window can erase the goal, no matter how far from the finish it happened. Distance and time are legally irrelevant; possession is the boundary.

This single clause explains the most disputed intervention in the archive: Ziko’s disallowed goal against Argentina, erased for a shirt-hold roughly eighty metres and twenty seconds before the ball went in. ESPN’s VAR desk called it technically correct — the foul sat inside the possession phase — while half the football world called it absurd. Both can be true: the protocol was followed, and the protocol is the argument.

The list of things outside VAR’s jurisdiction is longer than the list inside it, and most tribunal exhibits live out here. Second yellow cards. Persistent infringement and yellow-card thresholds. Corner and throw-in awards. Restart management. Whether a goal celebration deserved a caution. In all of these, the referee’s live judgement is final by design — the protocol’s authors feared a game refereed frame-by-frame more than they feared the occasional missed booking.

And when the system does have jurisdiction but simply fails, the results are memorable: the 2021 Otamendi elbow drew no foul, no card and no review — and CONMEBOL later suspended both the referee and the VAR official for the miss. The machine is only as good as the people in the room.