City striker Aguero still a doubt for Stoke

Sergio Aguero picked up an injury on the first day of the season (GETTY IMAGES)

Sergio Aguero, the Manchester City striker, has returned to training as he continues his rehabilitation following a knee injury. But he is still doubtful as to whether he will recover in time for the trip to Stoke City on Saturday.

City yesterday published a series of photographs on their official website of the 24-year-old doing work at their Carrington training ground. City had been optimistic, following the results of a scan on the injury, that he would be back by mid-September, although a caption with the pictures said: "Whether Stoke is too soon for a return or not remains to be seen."