Roy Keane and Gary Neville blasted Manchester United following their 4-1 defeat to Manchester City on Sunday.
Kevin De Bruyne and Riyad Mahrez scored two goals each as City eased past United at the Etihad.
United threatened Pep Guardiola’s side in the first half and Jadon Sancho drew the sides level briefly after a slick counter-attack.
But the second period saw City totally dominant, as United failed to have an attempt on goal of any description after the break.
And former United stars Keane and Neville took aim at Ralf Rangnick’s side after the game, describing the display after they had gone 3-1 down in the 68th minute as “embarrassing”.
Keane told Sky Sports: “We saw all of United’s shortcomings today, the way United lost the game today they stopped running, no running back, it’s really unacceptable when you play for Man United and I think they threw in the towel.
“They’re up against a top side but you have to tackle, you’ve got to run back, it was just a reflection of where the club is, they’re so far behind the other teams.
“We hear about problems with the new manager coming in but your own pride has to kick in at some stage.
“I was getting really frustrated, I can forgive mistakes but you have to put your body on the line. Wan-Bissaka, Fred, Maguire, Rashford came on, I could go on, gave up four goals and City didn’t have to be at their best at all. Shame on them.
“The worst thing that you could say about United is that they gave up. In any game if you give up, it’s unforgivable really.”
Keane’s view was echoed by Neville, who had been commentating on the game.
“The first thing to say is that Manchester City were outstanding, particularly in the second-half,” Neville added.
“But at the end of the game, Manchester United finished like an absolute shower. They were a disgrace in the last 25 minutes.
“The scoreline isn’t the problem. It’s the response to going 3-1 down that’s the problem. They have thrown the towel in. It’s like they have nine men.
“It’s the first time Ralf Rangnick has taken them against a proper team and they have been given a proper doing.
“There can be no complaints. City have been absolutely outstanding. But as a Manchester United fan, it’s embarrassing.”