The bad news for Manchester City is about center-back John Stones, it seems this player is not in a good situation he can't play for the team for a long time.
John Stones got injured in the game they had in the Champions League against Young Boys and he could continue the match.
Manchester City is going to have hard games against teams like Leipzig, Liverpool, Tottenham, and Chelsea and they can't have this player which can make everything harder for Pep Guardiola.
It's not only john stones but manuel akanji has been also reported to face no serious injury but there is still a chance for akanji to play against chelsea. As reported by
https://www.skysports.com/football/news/11095/13003069/john-stones-pep-guardiola-says-man-city-defender-will-be-out-for-a-while-after-injury-in-champions-league-win-over-young-boys#John stones will be out but pep is not tellling the press about exact time needed by john stones to recover from his injury. It's a colossal blow for city caused by john stones was also a very important club.
Manchester city will face chelsea in the upcoming game. Pep hopes that all of players are ready to face chelsea. It's caused by winning the match against the blues was very important for the club to remain at the first position of EPL.
Beating chelsea meant a tremendous step to go to the EPL trophy. I think that manchester city is still having some good centre back to replace him against chelsea.