Roy Keane branded Manchester United 'shocking' and Gary Neville slammed their 'terrible' errors after Erik ten Hag's side were outclassed by arch rivals Liverpool on Sunday.

Luis Diaz and Mo Salah inspired a 3-0 win that heaped embarrassment on United and threatened to plunge Ten Hag back into crisis after just three games of the Premier League season.

'You can try and dress it up a little bit but United were shocking, really shocking,' United legend Keane told Sky Sports. 'Every time Liverpool went forward, they looked like they were going to score. You'd be worried for the manager. I would never stand here and say I expect a manager to lose his job, but the pressure must be building.'

Keane's former Old Trafford team-mate Neville believes Ten Hag is safe for now, but warned he does not have long to show United are top-four contenders.

'Erik ten Hag is going to have to get the club into a position challenging for the Champions League towards Christmas or he is going to be in trouble. He knows that. He can't be in eighth at the end of November and going into December,' said Neville, who blasted United for their mistakes in possession.

Erik ten Hag saw his Manchester United side lose 3-0 to Liverpool at Old Trafford on Sunday

'Every manager who comes to this club has struggled. There's a feeling today of, 'Are we going to go through the same thing again?' But I think it's time for a bit of calm.'

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However, Jamie Carragher claimed it is only a matter of time before Ten Hag is sacked in a brutal assessment of United and their decision to eventually stick with the Dutchman this summer.

'Ten Hag said we'll see where we are at the end of the season, but I'd be surprised if he's still in charge then,' said the former Liverpool defender.

'It looks a mess. The ownership didn't want to keep him. They were scurrying around Europe seeing if they could find someone better, but they didn't have the nerve to make the change. It's only delaying the inevitable.'

Ten Hag admitted United had made errors but said the result was more down to Liverpool's ruthlessness.

'We made mistakes,' the United manager said, 'and they were very clinical in finishing, and they did very well. All three goals are mistakes from us, individual errors — the last one you can debate — but all the others, Liverpool were brilliant on the turnover and how they finished was so good.

'I saw their xG (expected goals), it wasn't that high. They deserve it and we have to be humble. We have to take this and improve our game.'