Romelu Lukaku has told his Manchester United teammates to stop complaining and take any criticism from boss Jose Mourinho on the chin as they are all adults.

Several United stars have come in for criticism from the Portuguese following the club's disappointing start to the season, namely Alexis Sanchez, Anthony Martial and Paul Pogba.

Pogba in particular has not been afraid to make his dispute with Mourinho public, culminating in a tense training-ground exchange in September, but Lukaku insists that United's players have to simply deal with the situation and get on with their job.

"I think he has a good relationship with the players," he told Bleacher Report. "I don't really pay attention to what his relationship is with the other players, to be honest. I don't think it's something that should affect me.

"If he has an argument with somebody I mean, deal with it, man. You're a grown-arse man, deal with it."

Lukaku is an injury doubt for Man United's trip to Crystal Palace this weekend.