Why Leeds United could be affected by VAR this season
The technology will be used if the Whites are drawn away to a Premier League team in the Carabao Cup or FA Cup.
VAR only intervenes in the course of a match when the officials have made a 'clear and obvious error' in one of four key areas. They are:
A close offside decision is the most common reason for VAR being consulted after a goal has been scored, but shirt-pulling and other infringements can cause goals to be chalked off.
The most subjective and potentially problematic area. Penalties can be awarded or rescinded using VAR if there has been a 'clear and obvious error' in the original decision.
Straight red cards
Violent conduct and dangerous tackles can be penalised using VAR. Second-yellow cards cannot.
If the referee sends off the wrong player that injustice can be repaired.