Chelsea legend Didier Drogba fears Jose Mourinho could leave this season.

Drogba has warned Mourinho's reign could end again in his third season at the club, according to the Mirror.

Drogba, writing in his new autobiography, said: "I believe things often come in three-year cycles (and) we had arrived at the end of such a cycle.

"By the start of the fourth (season) that Jose had been in charge, I think we had started to reach a point where it was sometimes harder for his message to get through.

"We wanted to hear it, we tried, but somehow we had lost a little bit of what made us special."