4) Darren Fletcher
Another squad player with something to prove this season, Darren Fletcher has often been first choice for United in the past, but now needs to work his way back into the starting lineup again after a long spell out with illness. The Scottish international is one of the few players in this squad that can offer both defensive work rate and quality in the final third from the middle of the park, and may show United that they don’t need to spend big on a new midfielder like Arturo Vidal. So far he has done a good job in van Gaal’s new-look setup, and looks ready to be a real leader on the pitch again.