Chelsea boss Mauricio Pochettino admits Christopher Nkunku could be fit to play next month.
The France striker was seen at the Cobham training centre this week.
Pochettino said, "He's doing well and working really hard. He's very close. Hopefully we can have him involved as soon as possible.
"He is a really important player for us."
On the prospect of a November debut, the manager also said: "Maybe [he'll be back] after the international break. Maybe, but not sure."