Chelsea goalkeeper Petr Cech has warned Roberto Mancini that he must not allow egos to get out of hand in the Manchester City dressing room.
Despite winning their first Premier League title last season, Cech insists that Mancini will find it tough to control a squad full of "huge players" in the new campaign.
The Czech Republic international told Sky Sports News: "It is in their hands how they manage to solve the problem of the huge players in the same squad so it is up to them.
"If they manage to get all those egos under their belt and control everybody then they will be the biggest rivals to win the title, together with Man United."
Cech signed a new contract in May that will keep him at Stamford Bridge for the next four years.
