Manchester City fear that striker Sergio Aguero could be sidelined for up to a month after picking up a hamstring injury in Tuesday's 3-0 win over Stoke City .
The Argentina international bagged his side's third of the afternoon from the penalty spot following strikes from Pablo Zabaleta and Edin Dezko, yet limped from the field just minutes later to be replaced by Carlos Tevez.
The 24-year-old is now set to undergo scans on the injury on Wednesday, with the initial prognosis suggesting a four-week absence.