Interim boss Ole Gunnar Solskjaer accepted that Manchester United had taken a big step backwards as they were beaten 2-1 at Wolves in the sixth round of the FA Cup.
The Red Devils were well below their beats at Molineux on Saturday evening and Solskjaer offered little in the way of excuses for the performance he had witnessed.
He told reporters: "Quite a lot was missing, it was the poorest performance we've had, it was a big step backwards.
"We never had the urgency and quality on the ball, even though without the ball in the first half we did okay.
"We felt too comfy in possession, we never managed to put their keeper or defenders under pressure. We had a couple of balls in behind for (Marcus) Rashford but not enough quality.
"I think it's something natural, you cannot perform to the top of your level every single time.
"It's still against a good team, they've done really well against top teams. Don't take anything away from them, even though we under-performed."
United now have two weeks to try and put things right, with their next game coming on Saturday 30th March when they play host to Watford in a Premier League clash at Old Trafford.
The meeting of the two sides at Vicarage Road earlier this season ended in a 2-1 victory for United, with Romelu Lukaku and Chris Smalling their goalscorers.
United are 4/9 to defeat the Hornets at Old Trafford and are 13/2 to secure a 2-0 victory, with the Red Devils 11/8 to claim a top-four finish come the end of the season.
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