The summer signing missed Saturday’s win over Crystal Palace due to illness, giving Ben Chilwell a rare start and the England international will continue as a left-back.
N’Golo Kante is now back in training, but could be in action, which have been his problems with injuries lately.
Edouard Mendy is another who has only recently returned to training, meaning Kepa Arrizabalaga will most likely start in goal.
Up front, Christian Pulisic must push for a start after his key role in setting up Conor Gallagher’s winner against Palace, possibly for Kai Havertz.
Raheem Sterling and Pierre-Emerick Aubameyang provide goals up front, while Potter put in a two-man front line last time.
Chelsea predicted XI vs Milan (4-2-2-2): Kepa; James, Fofana, Silva, Chilwell; Kovacic, Jorginho; Pulisic, Mount; Sterling, Aubameyang