GK David De Gea, 6 - The Spanish worldwide conceded from City's first two shots on target and will be unhappy to have been beaten at his near post by Aguero, though but there was a lot of power behind the effort.
"When I came on in the second half, he (Pep Guardiola) told me to keep the rhythm high and use the spaces".
Anthony Martial did breathe life into the away end at the Etihad Stadium as he slotted home a penalty after Romelu Lukaku was clipped by Ederson, but it was one comeback too many for Jose Mourinho's men.
And City claimed a third to record the winning margin that their performance deserved when Ilkay Gundogan scored four minutes from full-time.
Man City 'untouchable', says United boss Mourinho ahead of derby
United, on the other hand, have a dismal defensive record as they have already let in 18 goals in just 11 games. Aguero has played a key role in City's impressive start with seven goals in the league.
Asked if United missed Pogba, Mourinho replied: 'It's not me after a defeat to be speaking about a player who was not here.
If he plays no part, it is likely that United will field a midfield trio of Nemanja Maticć, Ander Herrera and Marouane Fellaini. Whenever they had the ball, there were huge gaps behind them and City were able to snuff out every United attack for the first hour of the game. Mourinho's team have kept just one clean sheet in the league this season and David Silva's strike in the 12th minute was the seventh time in 12 games that they have conceded first and the sixth time in nine they have conceded inside the first 20 minutes.
Fernandinho is 34 next May and his age has left Manchester City scouring the globe for a suitable replacement. "Now we are a much better team than at the beginning of the season when we lost a lot of points".
Manchester City will be looking to exact revenge on Manchester United after their humiliating 3-2 loss to Mourinho's side last term. He is an accomplished destroyer, a player not shy when it comes to making the kind of tactical fouls that enable City to break up play and regroup.