De Bruyne, who came on as a substitute in City's 2-0 victory over Arsenal in their first league match of the season last weekend, suffered the injury in training this week.

"Manchester City can confirm Kevin De Bruyne has suffered a lateral collateral ligament lesion in his right knee," the club said in a statement.

"No surgery is required and the midfielder is expected to be out for around three months."

De Bruyne scored eight goals and provided 16 assists as City won the league title with a record-breaking 100 points last season.

The 27-year-old Belgium international helped his country progress to the World Cup semi-finals in Russia.

City take on Huddersfield Town in the league on Sunday.