The Spanish tactician is likely to shake his selection up following the defeat at home in the Champions League.
Manchester City midfielder Kevin de Bruyne is recovering ahead of schedule from a knee injury and hopes to return to action against rivals Manchester United in the Premier League in November. "I think I will be back for the derby", De Bruyne said at the launch of FIFA 19 on Thursday.
"We'll play our game and try to maintain the physicality".
But the forward, who has proved his enduring worth to Pep Guardiola after a hard start working under the City boss, has committed to another year in England. "We can't forget what we've done. It is what it is".
Many of his players have taken to social media to apologise for the result and while Guardiola admitted they started slowly, he told a news conference that they have nothing to say sorry for. "Thank you so much (to him) for that". Third-placed City's most recent Premier League trip to Cardiff came in 2013 when they lost 3-2.
Aguero has already scored five goals and assisted a further two in six games this season. There are a lot of players, that have got things to improve and learn, but being in this Club you learn and improve faster than anywhere else. "I'm very happy with everything that involves the club, my teammates, the staff and the management team".