Football's most-argued decision just stopped being a human judgment. At the 2026 World Cup, an AI flags offside in milliseconds - 10cm precision, audio alert in the ref's ear, no VAR.
FIFA upgraded Semi-Automated Offside Technology (SAOT) for the 2026 World Cup. The moment a player is more than 10cm offside, an audio alert hits the assistant ref. No flag delay. No 90 seconds of VAR.
The 10cm threshold is 5x tighter than the Club World Cup test, which alerted at 50cm. All 1,248 players across the 48 squads have AI 3D avatars - each scanned in one second at pre-tournament photo day.
Human oversight stays: the assistant ref still raises the flag. But the JUDGMENT moved. The most-argued call in football is now decided by a model watching every player at 25 frames per second.