Chelsea's players must look at themselves and start performing, former Blues stalwart Frank Lampard said on Monday as speculation continues to swirl over the future of manager Jose Mourinho.

The Premier League champion has lost six of its opening 11 games and sits 15th in the standings as several of the club's leading players, such as Eden Hazard and Diego Costa, struggle to hit the form that helped win the title last season.

There have even been suggestions that an increasingly rattled Mourinho has lost the support of the dressing room, but Lampard said that should never be the case.