Nicolas Otamendi was pleased with City's response against Manchester United but was ultimately left disappointed with the final result.
The Blues were on the front foot throughout the game and dominated play with 70% of possession.
United rarely troubled Claudio Bravo but forced him into a save after he atoned for an error to deny Henrikh Mkhitaryan.
Aleksandar Kolarov saw a low drive well saved by David de Gea and Aguero blazed a couple of half-chances over the bar from distance.
On the hour mark, De Bruyne was denied by a good save from De Gea before United were reduced to ten men in the latter stages after Marouane Fellaini headbutted Aguero.
Gabriel Jesus made his comeback with five minutes later and thought he’d won the game for City in added time but it was ruled out due to the Brazilian being offside.