Chelsea won the league at a canter last season, and while Costa's goals grabbed the headlines, Thibaut Courtois provided a solid base for the rest of the team to function upon. He arrived at the club with a stellar reputation, and even unseated Petr Cech between the sticks. That's not an easy feat for anybody let alone a young stopper ready for his debut season in England. He was a commanding presence for Chelsea and will need to be on top form this season if they are to challenge once more after a shaky start. Courtois should stick at 86.