In the event that the on-field referee awards a yellow or red card to the wrong player, or is unsure of the player to award it to, the VAR will advise the referee as to the correct player to be disciplined.
See also
VAR: Goals
VAR: Penalty decisions
VAR: Direct red card incidents
Further VAR reading
VAR protocol
Premier League's VAR principles
Clear and obvious
Referee Review Area (RRA)
Attacking possession phase
Offsides
How offsides are determined by VAR
Penalty kicks
Unseen incidents
Final decision
VAR Hub
Communications
Frequently Asked Questions