Manchester City striker Sergio Aguero steps up recovery Striker Sergio Aguero has returned to training with Manchester City as he continues his rehabilitation following a knee injury. City this morning published a series of photographs on their official website of the Argentina international doing work at their Carrington training ground. The pictures show Aguero, who sustained the knee problem in the Blues' Barclays Premier League opener against Southampton on August 19, stretching and running with a club physio and doing some ball work. City had been optimistic, following the results of a scan on the injury, that the 24-year-old would be back in action by mid-September, although a caption with the pictures today said: "Whether (the league match on Saturday away against) Stoke is too soon for a return or not remains to be seen."