Arsenal legend Patrick Vieira insists Manchester United's players have no respect for Jose Mourinho.

Vieira, who played under Mourinho at Inter Milan, the 53-year-old is struggling because his younger players no longer respect him.

"It's very difficult for him," Vieira, in charge of New York City FC, told RMC.

"When you arrive in Manchester with the seasons they have had before with [Louis] Van Gaal and [David] Moyes, it's a bit more difficult.

"I don't know if he's lost the plot.

"I don't think he's changed his philosophy or tactics. I think he's got the same approach, because he's always about confrontation, he's the boss.

"Perhaps his players aren't as receptive, that the generation has completely changed. At Inter, we were quite an experienced group and he handled it well.

"The problem is almost certainly that there is a new generation and the message does not go through as well.

"There are players who perhaps stand up to him and perhaps aren't afraid to say what they think.

"That makes things more difficult."