Diego Costa is set to play against Arsenal

Jose Mourinho is confident all his strikers could be fit for Chelsea's showdown with Arsenal next Sunday.

Mourinho's players returned to training Tuesday after being given two days off as an extended break to prepare for their London derby at the Emirates.

It was designed to recharge their batteries and Chelsea hope Diego Costa will train fully ahead of the Arsenal game and be fit to face Arsene Wenger's men.

Costa's long-running hamstring problem leaves him with a race against time to start the game but the Spain international believes he will be fit.

Loic Remy is also hoping to prove his fitness after missing the last two games through injury.

Didier Drogba, who missed a charity match on Monday because of an ankle injury, is also hoping to be fit.

It would come as a welcome boost for Mourinho who needs two more wins to clinch the Premier League title.

If Chelsea beat Arsenal and then Leicester three days later, they will be crowned champions.