Benjamin Mendy could be out for up to three months with his latest knee injury, Manchester City boss Pep Guardiola has revealed.
The France left-back underwent surgery to repair a meniscus problem in his left knee last week.
It is a second major injury setback for Mendy, 24, since he joined City in 2017 after missing the majority of last season with cruciate ligament damage in his right knee.
Mendy joins Kevin De Bruyne and Claudio Bravo on the long-term injury list while Bernardo Silva has been ruled out of the Premier League champions' trip to West Ham today with a knock.
There is also doubt over whether Silva will be fit for Tuesday's Champions League clash at Lyon.
Guardiola said of Silva: "He cannot play this weekend. The injury is not too big but I don't know if next Tuesday he will be available."
Guardiola, 47, repeated his desire to manage in international football. But the Spaniard, who took over City in 2016, recently committed to City until 2021 and says he could yet extend his stay further before pursuing other ambitions.
The former Barcelona and Bayern Munich boss said: "Everybody has dreams and when I was a little boy I had dreams. Sometimes they are accomplished and sometimes not. I said maybe in the future I would like international management.
"Maybe I will change my mind later but I am fully convinced in my mind here." Guardiola faces City predecessor Manuel Pellegrini at the London Stadium.
The West Ham boss won the title with City in 2014 before making way for Guardiola two years later.
Guardiola is an admirer of the veteran Chilean coach and said: "His career speaks for itself in terms of quality. When you see the teams of Pellegrini, even if you are blind, you recognise his style.
"He started incredible in Villarreal and put this team at another level. It was a small city and the way they played and the way they created their own style was impressive.
"After that he went to Real Madrid and made a very good league campaign with 96 points, but at Barcelona we did 99."
Pellegrini, meanwhile, says he bears Guardiola no ill-will despite being replaced by the Spaniard at the Etihad.
He said: "I have a good relationship with Pep, I have no problems with him. He was always a rival with me.
"He is a good manager who manages the team in the way I like to do also."