Chelsea's chances of increasing their unbeaten start have been boosted by the news that Diego Costa will be available when they host QPR on Saturday. 

José Mourinho said that back up striker Loïc Remy has been ruled out of the game but expects him to be back after the international break. 

The Chelsea boss also said that he will not stand in the way of players leaving on international duty following his recent disagreement with Spain coach Vicente Del Bosque over the handling of Costa's injury troubles. 

Mourinho has never faced QPR and maintains it will be a tough encounter. 

"I think I know what to expect from QPR, and I can say it will be a difficult game for us," he said in his weekly Premier League press conference. 

Ramires is also set to return to action for the league leaders.