The Argentina striker has been out injured since suffering a hamstring problem on international duty with La Albiceleste, and the former Atletico Madrid man has missed the last seven games.
Despite being feared as one of the Premier League’s leading marksmen, the injury-prone Aguero is often missing for the Citizens, and with Wilfried Bony also sidelined at present, manager Manuel Pellegrini’s options are limited up top.
Kelechi Iheanacho is the only recognised centre-forward for City, with Raheem Sterling also positioned to once again take up the unfamiliar role he was handed by Brendan Rodgers at Liverpool at times last term.
City host Jurgen Klopp’s Reds after the international break, and Aguero is targeting a return to action when the five-time European Cup winners visit the Etihad.
Aguero told the club’s official website: “I don’t think I’m too far away now. Physically, I feel good and I’ve kept as fit as I can during my lay-off.
“I still need to work hard for another week and if not this week, then maybe next, I hope to start training with the rest of the lads and so and my target is Liverpool.
“I’ll take things slowly and not rush into anything, but I’m not far away. It’s a nice feeling, especially when you score five goals but the most important thing is that the team wins.
“It’s a long campaign and there’s a lot of games to go but we’re happy to be at the top of the table at the moment.
“We need to focus on what we’ve been doing and keep it going because we have an important game coming up against Liverpool and the result at Aston Villa wasn’t exactly what we’d wanted.”
City, who currently lead the division on goal difference, were held by struggling Aston Villa on Sunday, as Remi Garde’s reign at Villa Park began with a creditable home draw against the title favourites.
However, the visit from Liverpool offers the blue half of Manchester a chance to record a third straight victory at the Etihad against the Reds.