But Aguero's strike kept City a point above their rivals, who have played a game more, and provided a moment of solace after their mid-week Champions League elimination at Monaco's hands.
"John Stones has more personality than all of us here together in this room". City, who face Arsenal and Chelsea immediately after the worldwide break, need to continue playing their best football if they want to be there come the end of the season. This happens in every game and it's not good enough.
"The goalie was quite impressive for City today and maybe he made a good movement or whatever, or he [Lallana] was surprised that we played football like this because we hadn't 20 times before that".
I am not sure it is Pep Guardiola's proudest performance after what he achieved as a coach and player.
Aguero slipped when through on goal as City pushed for a second goal, with De Bruyne seeing a follow-up hit the outside of the far post.
De Bruyne struck the post following a goalmouth scramble on 75 minutes, while Adam Lallana wasted a gilt-edged opportunity from close range as both sides continued to attack.
"I am delighted to have him".
"You can not imagine. It is one of the happiest days of my career as a manager".
However, the Argentinian did much better midway through the second half as he arrived right on cue to sidefoot home the equaliser from a flawless delivery from the right from De Bruyne. I enjoyed it because it was two sides trying to win the game, trying to create chances.
The result took Liverpool four points clear of fifth-placed Manchester United - which has played two games fewer - ahead of the worldwide break, and Milner was relieved not to have been left with a defeat to reflect on.
The result means Liverpool have avoided defeat in the 10 games they have played against the other members of the top six this season.
Ex-Ireland defender Gary Breen raised the disparity between Spurs' home and away record after watching them beat Southampton at White Hart Lane. "It's not the easiest of places to come and we can't be too disappointed with a point".
Following their draw at Manchester City, Liverpool are not next in action until after the worldwide break when they take on local rivals Everton at Anfield in the Merseyside derby.
"To get a point at Manchester City for each team in the world is absolutely OK", said the Liverpool manager.