Kevin De Bruyne has suffered a knee injury in training and looks set for a period on the sidelines, Manchester City have confirmed.
The Belgium international enjoyed a brilliant campaign last season, scoring eight goals and setting up another 16 as City romped to Premier League success.
However, Wednesday's news will come as a blow to City and coach Pep Guardiola, who could be without the 27-year-old for a couple of months.
"Kevin De Bruyne is undergoing tests on his right knee after sustaining an injury at training on Wednesday," read a brief statement from City.
"The extent of the problem is not yet known and we will bring you further updates on Kevin's condition in due course."
On that occasion, De Bruyne missed 10 weeks of action - including the 2015-16 EFL Cup final - and City's title challenge subsequently collapsed.
