#2 Eden Hazard
The Belgian international is the jewel in Chelsea's crown and during his six year stay at Stamford Bridge he has won 2 Premier League titles, 1 Europa League, 1 FA Cup and 1 League Cup.
The former Lille winger is undoubtedly one of the best players in the world and he is very much capable of winning trophies single-handedly.
He has been linked with a move to Real Madrid, but Chelsea must do all they can to convince the Belgian to stay put because with him they are guaranteed to win trophies. Last season when Chelsea was so poor and inconsistent, Hazard managed to lead them to an FA Cup triumph.
With Sarri's system coming to Chelsea, Hazard could finally enjoy the freedom of playing in an attacking setup, and if Hazard is at his best it could only mean trophies for Chelsea.