Dec 12, 2019 4:55 PM GMT
Aguero, Manchester City's all-time record goalscorer, suffered a minor strain last month in the 2-1 victory over Chelsea, with no timescale being put on his recovery.
The Argentina striker, however, felt well enough to train for over an hour by himself at the City Football Academy training campus on Wednesday afternoon, with encouraging signs he is again nearing full fitness.
It's understood the club's medical staff will increase Aguero's intensity over the next 24 hours, with boss Pep Guardiola hopeful the player can make his squad for Sunday's visit to play Arsenal at Emirates Stadium.
The 31-year-old had been in red-hot form this season after bagging 13 goals in just 16 appearances, and was gutted to miss out on last weekend's disappointing 2-1 home derby defeat to rivals Manchester United.