City's top scorer was withdrawn at half-time of last week's Champions League defeat at Barcelona with a hamstring problem.
The 25-year-old missed Saturday's victory at Hull and after a five-game lay-off with another hamstring injury in February, there were fears he might have suffered a recurrence.
But manager Manuel Pellegrini has expressed hope the Argentina forward could be back in action within a fortnight and Aguero himself has also said the issue is not serious.
Aguero tweeted: "I'm no longer frustrated about the crick I felt during the Barca encounter that prevented me from giving my best.
"Luckily, the injury is minor and football will always give you a chance for payback. Now focused on rejoining the guys."