Roy Keane says there are issues with the current Manchester United squad, but believes getting the best out of Paul Pogba is one of the biggest problems for Jose Mourinho .
The record signing has been in the spotlight throughout this season having struggled to hit his top form, while there have been rumours of a rift between the star player and boss Mourinho.
Pogba found himself under fire again this week after coming off the bench and failing to provide the spark United needed as they crashed out of Europe to Sevilla.
Speaking following the miserable 2-1 defeat at Old Trafford, Keane slammed their performance and said a lot of their players ‘are not good enough’ to play for Manchester United.
But the former captain was particularly scathing of the French superstar, who he branded a ‘schoolboy’.
"Pogba is not the only problem," Keane said on ITV.
"But he is a big problem and if he can't get in the starting XI you're in trouble.
"He's come on and you expect good players to affect the game.
"He came on and done nothing. His reaction to the goal is like a schoolboy. He doesn't smell danger.
"The reason you're part of a team is that if one of your mates makes a mistake you cover for them, you make up for it.”
Keane also hammered the lack of team unity within the current Man United squad, adding: "Nobody is helping each other.
“They are almost playing like individuals and not playing as a team.
"They are not playing like the great Manchester United teams and that was even on an off night, you can grind out a result.
"This team doesn't seem capable of doing that."