England defender Micah Richards on Tuesday underwent an operation on his right knee after picking up an injury for Manchester City against Swansea last weekend, the Premier League champions said.
The northwest club said that the 24-year-old would be out for between 12 to 16 weeks.
He damaged his cartilage while changing direction in Saturday's match, which City won 1-0.
"The positive thing is that the injury has been repaired so the knee will be as good as new," Richards was quoted as saying on the club's website.
- Afp