John Terry and Frank Lampard could both be fit for this weekend's all-London clash with struggling West Ham.
Both the Chelsea captain and vice-captain have been ruled out of England's Euro 2012 qualifiers against Bulgaria and Switzerland with a hamstring and a groin injury respectively, but Chelsea coach Carlo Ancelotti has hinted that both players could be fit enough to play against the Hammers.
"Lampard had surgery and I think that he will start to train this week," said Ancelotti. "I don't know when but we will see how he trains and we will take a decision for the game against West Ham. Terry didn't have surgery but he used the last week to improve his hamstring."
He added: "He will start to train with the squad this week and I think he will be able to play against West Ham."