Semi-automated offside technology is an officiating support system in association football used to assist video assistant referee teams in reviewing possible offside offences. The technology uses play
A referee reviewing an incident on a VAR monitor. Semi-automated offside technology assists video officials during offside reviews.
Video assistant referee
Videos
The video assistant referee is a match official in association football who assists the referee by reviewing decisions using video footage and providing advice to the referee based on those reviews.
VAR monitor at the Estadio Monumental David Arellano in Santiago, Chile
A VAR decision during an FA Cup match at the City of Manchester Stadium, Manchester.
A Major League Soccer referee reviewing a play using a sideline monitor
Assistant video assistant referees in action during a Saudi Professional League match