Nigerian coach Samson Siasia has told John Obi Mikel to quit Premier League champions Chelsea.
Siasia feels that the 23-year-old has had his attacking instincts stifled at Stamford Bridge.
He is now calling on Mikel to leave Chelsea in order to further his progress elsewhere.
"He has to start playing more offensively to become the Mikel we knew," said Siasia.
"But if it's difficult to change the way he is playing, he has to move to another club.
"The system at Chelsea destroyed Mikel's game.
"He is an offensive player, but when he moved to Chelsea they changed him."