Antonio Conte has confirmed that Eden Hazard is a doubt to face West Ham in the Premier League on Monday after receiving a kick in training from a mystery team-mate.
Hazard has started all but one of his side's league games this season, and Chelsea otherwise have a clean bill of health ahead of the match.
Conte, meanwhile, does not remember which of his players inflicted the injury upon the Belgian.
“There are no important injuries - apart from a little problem for Eden Hazard. He got kicked," Conte said at a news conference at Cobham Training Ground. "But it's nothing serious. The rest of the team are in good fitness and working very well.
"The kick was in training on Wednesday. I don't remember who kicked him, but it's nothing at all serious.”
David Luiz has been playing through a knee injury since a rash challenge from Sergio Aguero in December but is still seeking full fitness.