2. Adrian Mutu
One of the most naturally talented players of his generation, the Romanian wizard scored 4 goals in his first 3 games at Stamford Bridge. The former Fiorentina man cost around £15.8 million back in 2003 when he signed from Serie A side Parma. Mutu’s relationship with Mourinho was patchy at best, and after Mutu failed a drugs test for Cocaine in September 2004, the damage was done. On 29th October 2004 he was released. On 12th January 2005, Mutu was picked up on a free transfer by Juventus, and to this day it is still debated if the Old Lady owe Chelsea any compensation.