“Jon Moss said it was a blatant penalty and should have been given – fair play to him, he apologised,” said O’Neil after the match, which United won with Raphael Varane’s 76th-minute header.

“I have spent a lot of time with him today to understand the new guidelines, trying not to get myself booked in the first game, which I have failed in.

“But fair play to Jon for coming out and saying it was a clear and obvious Error – he couldn’t believe the on-field Referee didn’t give it and can’t believe VAR didn’t intervene.

“It probably made me feel worse, actually, because you know you are right. I feel worse regarding leaving with nothing. Live, I was told they didn’t think it was a clear and obvious Error.”

Manchester United vs Wolverhampton Wanderers .
Score: 1-0.