Benjamin Mendy will miss between 10 and 12 weeks with a knee injury.
The City left-back’s absence was confirmed by Pep Guardiola at the pre-West Ham press conference and means he is unlikely to be available until mid-February at the earliest.
Mendy was forced to withdraw from the France squad during the international break and underwent surgery on his knee.
Said Pep: “Benjamin will miss between 10 and 12 weeks.”
On 14 November, the City left-back tweeted: “Other knee was jealous, but the operation went well and it’s all good now be back soon guys.”
Mendy missed seven months last season after injuring his other knee in a home game with Crystal Palace.