Manchester United chiefs fear Zlatan Ibrahimovic's knee injury recovery won't be 100 per cent.

Ibra has worked hard to get back just seven months after the career-threatening injury suffered in the Europa League quarter-final win over Anderlecht.

Man Utd fear Zlatan Ibrahimovic will never be the same again after his knee injury

But the Swede, 36, has looked a shadow of the player who was United's top scorer last season with 28 goals from 46 appearances.

Recovering full match-fitness after such a bad injury is proving difficult and there are concerns at Carrington, where his full rehabilitation is monitored, says The Sun.

Boss Jose Mourinho has already had to take him out the squad for two games since his return so he can return to the gym to try and build up the strength around the knee.