Ben Chilwell will have a scan on Thursday to assess the hamstring injury he suffered against Brighton.
Defender Chilwell was forced off in injury time of Chelsea's 1-0 Carabao Cup win over the Seagulls on Wednesday night.
He received treatment on the pitch before he was able to walk around the field alongside members of Chelsea's medical staff as he came off.
Chilwell has suffered hamstring injuries in the past including a major one last season which forced him to miss the World Cup in Qatar.