Diego Costa unlikely to play Chelsea's weekend clash against Manchester United

Diego Costa looks set to miss his second consecutive match after Chelsea manager Jose Mourinho expressed his doubts over the Spaniard's fitness for their next Premier League match.

Mourinho admitted he doesn't think Costa will be ready to take part in the team's clash with Manchester United on the weekend.

Costa, who missed Tuesday's Champions League game against Maribor, has been dealing with hamstring issues for much of the season. He aggravated the muscle while he was on international duty with Spain. 

Chelsea will likely have to start Didier Drogba up front since the squad will be without Loic Remy as well after the French striker appeared to injure his groin in the match Tuesday.