Arsenal manager Mikel Arteta believes that David Luiz did not make any contact to foul Wolves’ Willian Jose before getting his marching orders.
The incident included a penalty that allowed Ruben Neves to convert the equalizer and eventually helped Wolves to a 2-1 win on Tuesday night.
Asked for his thoughts on the dubious decision, Arteta admitted he was not convinced it was a foul and legal action is set to be considered by the club.
"I've seen the replay 10 times from five different angles, and I cannot see any contact. I would like to see if VAR have different angles.
"I don't want to think that [the decision was made on David Luiz's reputation]. I'm sure they made the decision based on seeing something. I was expecting to see something but didn't see anything.
"Of course it changed the game - playing for 45 minutes with 10 men in the Premier League, without your central defender, of course it changes the game.
"It was a big decision. If the officials got it right, and can justify they got it right, I will put my hand up and apologise. But I didn't see any contact and that is really frustrating because it was a big moment in the game,” added the Spaniard.
Coming up next for the Gunners is a trip to Birmingham to battle Aston Villa on Saturday afternoon.