Chelsea remains concerned with the recurring hamstring injury to Diego Costa.

Costa was held out of Wednesday's Champions League match until the final 15 minutes.

“It was not to protect Costa for the game on Sunday [Manchester City vs. Chelsea], it was because he was not in condition to start the game,” José Mourinho said. “Playing on Saturday, three days is not enough for him to recover.”

Chelsea is expected to have Didier Drogba and Loic Remy play in less important matches to preserve Costa.