Manchester United's popular undroppable might need to be benched by Ruben Amorim

Who was at fault for Manchester United's heavy defeat to Bournemouth on Sunday afternoon?

How did they concede from another set-piece? Why did Noussair Mazraoui make such a rash challenge to concede a penalty? Why was Kobbie Mainoo's pass for the third goal so casual?

United fans had more questions than answers as they made an early exit from Old Trafford. Unfortunately, that has become a familiar feeling for supporters who have attended games this season and United were unable to give their fans something to celebrate ahead of Christmas.

It was collectively a poor performance and indicative of United's form that the most consistent performer in the dressing room, Mazraoui, made such a bad tackle for the penalty.

Bournemouth were leading 1-0 at half-time but United ended the first half with momentum and a bright start when play resumed could have produced a completely different outcome.

Mazraoui conceded a penalty in the 60th minute instead. The challenge was clumsy, it was a stonewall penalty and Bruno Fernandes still protested the decision with the referee.

Although Old Trafford was already flat and the quietest it had been for some time, Justin Kluivert converting from the spot seemed to kill any hope the game could be salvaged that was remaining on the terraces and Bournemouth's third goal made sure of that just moments later.

Mazraoui hadn't put a foot wrong in a United shirt until that penalty. There's something incredibly endearing about a player who is a 7/10 each week but Mazraoui received a 4/10.

It was a stupid tackle, which was due to a lapse of concentration. Mazraoui can be forgiven and he's probably entitled to a mistake given he's had such an excellent season, but it felt like an error from a player who