The Argentinian forward's calf injury, sustained during Saturday's Premier League win over Arsenal, is reportedly not as serious as was first feared. Sergio Aguero is reportedly set to return to action for Manchester City before the end of January. According to the Daily Telegraph, the Argentinian forward's calf injury is not as serious as first feared. City boss Manuel Pellegrini had admitted on Tuesday that Aguero, 25, could be sidelined for up to eight weeks as a result of the injury sustained during the Premier League victory against Arsenal on Saturday.