#5 Anthony Martial
Martial has to be one of the best players in Europe not featuring regularly for their club. Winner of the Golden Boy award in 2015, he scored 11 goals in his debut EPL season but has found himself suffocated by Mourinho and his tactics since.
Martial will never be a player to focus on his defensive duties, something which Mourinho can't abide, but his talent is too great to allow this to affect matters. The Frenchman is behind Alexis Sanchez, Fred, and Jesse Lingard in the pecking order, despite that trio's woeful and ineffectual form.
There's no doubt that Martial could have produced more attacking output than them if given the opportunity. A supreme natural talent, Martial's direct running and intricate dribbling could be just what Manchester United need to start unlocking opposition defences.