The Argentine posted photos of him training with City with the caption: "I am ready."
It was initially reported that Aguero would miss up to a month of action, and although he is feeling better, the 29-year-old still isn't sure if he'll take part in City's clash with Stoke on Saturday.
"I still do not know if I am going to play on Saturday," Aguero told TyC Sports. "I trained normally, but without the group."
Vuelta a los entrenamientos y preparado!! Back to training. I am ready! pic.twitter.com/ThauwGxq7f
— Sergio Kun Aguero (@aguerosergiokun) October 12, 2017