#4 Marcos Rojo
One of Manchester United's mainstay last campaign, Marcos Rojo was out of action since April after rupturing his anterior cruciate ligament in a Europa League game and only made his comeback late in November against Basel in a UEFA Champions League game.
However, Rojo, on his injury return, is going through a poor run of form. In 5 Premier League appearances so far this season, the Argentine international failed to keep a single clean sheet and conceded 7 goals.
He made a total of 1 successful tackle in his 5 games combined and never looked like the player we saw last season. He lost more duels and his aerial battles weren't great either. It may be too harsh to asses Marcos Rojo who is just six weeks into his return from a horrific injury but the 27-year-old is capable of playing a lot better.