VAR & Technology
Video Assistant Referee — what it reviews, how it works, and its impact on the game.
VAR — the Video Assistant Referee — is a system that uses video replay to help match officials correct clear and obvious errors in four specific match-changing situations. Introduced at the 2018 FIFA World Cup and now used in all major competitions, VAR has changed how players, coaches, and fans experience pivotal moments in football.
What VAR reviews
VAR only intervenes in four categories: 1) Goals — including offside in the build-up and handball before the ball enters the net. 2) Penalty decisions — whether a foul inside the box was committed and whether it was inside or outside the area. 3) Direct red cards — serious foul play or violent conduct. 4) Mistaken identity — when the referee cautions or dismisses the wrong player. VAR does not review yellow cards for non-violent offences, simulation, or tactical fouls — it is specifically designed for match-changing decisions.
How the review process works
The VAR team — typically two or three officials in a video operations centre — monitors the broadcast feed in real time. If they spot a potential error, they alert the on-field referee via earpiece. The referee can then either accept the VAR recommendation or walk to the pitchside monitor to review the footage themselves (the 'on-field review'). FIFA protocol is that VAR should only intervene when there is a 'clear and obvious error' — not to reverse 50/50 decisions. In theory, this keeps the system as a safety net rather than a replacement for the referee's judgment.
Goal-line technology
Separate from VAR, goal-line technology (GLT) uses cameras or magnetic sensors to determine with certainty whether the ball has fully crossed the goal line. The referee receives a signal on their watch within one second. GLT was famously absent at the 2010 World Cup when Frank Lampard's shot for England clearly crossed the line against Germany but was not awarded — a decision that helped accelerate the adoption of the technology. FIFA requires GLT at all World Cup finals venues.
Controversy and the offside line
VAR's most contested use is the semi-automated offside system, which draws pixel-level lines to determine whether an attacker's shoulder, arm, or foot is offside by centimetres. At the 2022 World Cup FIFA used a semi-automated offside tool with 12 dedicated cameras tracking player skeletal positions, dramatically speeding up decisions. Critics argue these millimetre calls undermine the spirit of the law — the offside rule was designed to flag 'daylight' between attacker and defender, not fractions of a pixel. The debate will continue at WC 2026, but the technology is here to stay.
VAR at World Cup 2026
All 104 matches at WC 2026 will use full VAR. FIFA has indicated it will further refine the on-field review process to reduce delays, which have been a major source of fan frustration — some VAR checks at Qatar 2022 took three to four minutes. Expect continued evolution: FIFA is trialling automated penalty-area adjudication systems that could eventually flag handball and foul incidents without human intervention in the VAR room.
Related Concepts
Two 45-minute halves, stoppage time, and how a soccer match is organised from kickoff to full time.
The Offside RuleWhy attackers must have at least one outfield defender between them and the goal when the ball is played.
Formations OverviewHow the 11 players are organised on the pitch — the numbering system and what each shape prioritises.
SubstitutionsWhen and why managers swap players — the tactical and physical reasons behind every change.