So this is the reason why I was not able to sleep all night just to know that Jose Mourinho has left Chelsea. whhhhhhyyy??? Jose was a winner! I am completely distraught by this decision. 6 trophies in 3 years…seriously we are losing the best coach in the world right now. Jose, we will miss you and best of luck to you. The day Jose Mourinho leaves the club, is the saddest day in the history of Chelsea FC.