6. Michael Essien
Well his name only appears on this list after Essien was signed by Jose Mourinho on loan at Real Madrid when Jose was manager there. Michael Essien reunited with the person who brought him to Chelsea but this time at Real Madrid, Michael Essien lost his touch due to several injuries which followed him. Mourinho was looking to reignite him by signing him at Real Madrid but the Ghanaian failed to make use of his short stint at the Bernabeu. So despite his legendary status at Chelsea, Essien became one of Jose Mourinho’s worst signings at Real.