Eden Hazard will be sent for a scan on his injured groin after he was forced off against Crystal Palace on Sunday.
The Belgian winger limped out of the Blues' eventual 3-0 win in just the 16th minute at Selhurst Park and now requires tests to assess the extent of the injury.
Chelsea caretaker boss Guus Hiddink said: "He slipped, and he has a little problem with a muscle inside his groin.
"We'll see tomorrow with the MRI scan how damaged it is."
Hazard was replaced by Pedro as the Blues produced a convincing victory courtesy of goals from Oscar, Willian and Diego Costa.