Chelsea forward Christian Pulisic is facing months out through injury, says head coach Graham Potter.
Pulisic came off in the first half of Chelsea's 1-0 home defeat to Manchester City in the Premier League with a knee problem.
Potter initially said the USA international would miss a couple of weeks but, following further assessment, the time frame around Pulisic's return has shifted quite sizeably
However, there is positive news about Chelsea's other striking options with Pierre-Emerick Aubameyang available for Thursday's trip to Fulham.
Raheem Sterling will not be ready for Chelsea's return to Premier League action but there is hope his injury is not as severe as Pulisic's
"Pierre is fine and he will be in the squad," said Potter. "Christian is a couple of months we think. Raheem is less, hopefully less than that."
