It has been at the centre of attention all season long and VAR got another kicking on Tuesday night after Eddie Nketiah was sent off for Arsenal while Jamie Vardy escaped punishment.
Vardy appeared to kick out at Shkodran Mustafi in the first-half, hitting him in the head, but referee Chris Kavanagh seemed to judge it to be accidental and VAR did not review the incident.
Arsenal manager Mikel Arteta was left fuming. After the game, he said: 'It can be a red card but Leicester have to play for 10 men after 42 minutes.