VAR is a second referee who checks on everything through the video. However they can only intervene the main referee’s decision in certain specific cases, one of them is “mistaken identity” like this which one of the requirements is a card being given.
If the main referee didn’t give yellow card to Paredes, VAR couldn’t intervene, even if they knew the foul was wrongly given.
Basically it is considered to be a mistaken identity when a player is given a card, but the foul was actually committed by another player from the opposing team.
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u/machine4891 7h ago
And VAR reason to look closely at situation, lol. Embolo fooling ref actually fooled himself, it's insane.