Tottenham boss Ange Postecoglou admits he's never been a fan of VAR.
Posetcoglou's team benefited as they won 2-1 against nine-man Liverpool on Saturday.
He said: "You might have to dig up some research on me mate. I think I'm on record as saying that I've never really been a fan of it since it came in. Not for any other reason than I think that it complicates areas of the game that I thought were pretty clear in the past, but I can see at the same time why it was inevitable that technology would come in.
"We have to deal with it. The biggest problem I think that we have is that we seem to fail to grasp is that no form of technology is going to make the game errorless. We used to understand that errors were part of the game, including officiating errors.
"You'd have to cop it and some people would cop it better than others but that was part of the game. The game is littered with historical refereeing decisions that weren't right but we all accepted it that it was part of the game because we're dealing with human beings.
"I think that people are under the misconception that VAR is going to be errorless. I don't think there's any technology, because so much of our game isn't factual. It's down to interpretation and they're still human beings. They're going to make mistakes the same way managers make mistakes, the same way players make mistakes.
"When you put such a high bar on something it invariably is going to fail, so if people are thinking that VAR is going to be something that at some point that is perfect, that's never going to happen."