Man Utd FRUSTRATION: The TWO things Paul Pogba has done to leave staff majorly concerned

Mourinho and his coaching staff have been left shocked by Pogba’s lack of commitment in his performance during the 0-0 against Crystal Palace.

But the Mail claim there are more serious issues at play with the French midfielder.

Insiders believe Pogba is lacking focus with two incidents highlighted as the perfect examples.

The first came when he came off the bench during the 1-0 win over Young Boys in the Champions League in midweek.

Pogba, left on the bench by Mourinho, was brought on in the second half but took to the field wearing a necklace.

He then had to run back off to hand it to the United boss with insiders believe it shows his lack of focus.

The second came on Friday night before the Crystal Palace game, where Mourinho arranged for a stylist to visit him at the Lowry Hotel.

The move shocked staff who felt he should have been concentrating on the Palace match and not having the hair cut.

It is now unclear whether Pogba will be recalled for the trip to Southampton on Saturday.

Mourinho slammed water bottles into the ground in an expression of “relief” after United snatched a last-gasp winner to reach the Champions League last 16 – an opportunity the manager used to remind “lovers” of his enviable continental record.

Young Boys looked set to frustrate, and perhaps even embarrass, the Old Trafford giants on home soil on Tuesday, displaying composure, confidence and camaraderie sorely lacking in their opponents.

But, not for the first time this season, Mourinho’s men dug deep and scored a late winner, with Marouane Fellaini turning home to secure a 1-0 victory and progress to the Champions League round of 16 with a match to spare.

The United manager kicked a water bottle carrier and threw another into the ground in celebration at a goal that means they head to Valencia next month with progress assured after the Spaniards lost at Juventus on Tuesday.

“Relief,” Mourinho said of his celebrations. “Frustration before that and relief with the goal.

“I think we didn’t play for that, we didn’t play for 0-0. We didn’t play to be in trouble until the last minute, so frustration.

“I was not unhappy with the players. Not at all.

“Frustrated with the fact that we couldn’t score, yes, but my players were very tired at the end and that’s what I love – I want them to be very tired.

“It means that they give everything, and they did that, with moments of very good football, moments of quality, moments of hypothetical beautiful goals and then also with moments of pressure, moments of lack of confidence, that frustrate us.

“But, in the end, we score.

“I have to reunite the goal we scored with David De Gea’s save. I think without David’s save, no winning goal.

“But, in the end, we qualify in a very difficult group with one match in hand, suffering a lot, but we did it.”