Manchester City boss Manuel Pellegrini could not hide his disappointment of yet another mistake laden defeat which saw his City side slump to a third away loss of the campaign.
Pellegrini's men seemed to be the more likely victors as they grabbed hold of the second-half at Stamford Bridge.
Chelsea found themselves 1-0 to the good when some poor defending from left-back Gael Clichy let a confident Fernando Torres past him which allowed the Spanish forward to provide an easy conversion for Andre Schurrle.
City took control early on in the second half and looked the part, Sergio Aguero especially looked rejuvenated after the break and scored a world class strike from outside the area which beat a stranded Petr Cech.
Matija Nastasic seemed to be in control of a hopeful direct ball, nodded it back but a mis-communication between the defender and on-rushing goalkeeper Joe Hart left Torres with an easy tap in with just stoppage time remaining.
This was just more mistakes from a defence that without Vincent Kompany look dis-organised at best and Pellegrini will have to correct this quickly as they risk falling off the pace.
Admittedly it is early days but a loss to a big rival will give Chelsea and added boost and possible give Chelsea boss Jose Mourinho the mental edge over his City counterpart. This defeat leaves City back in seventh place in the table.
It was a makeshift City centre-back pairing of Nastasic and Martin Demichelis and it looked a very nervous pairing early on and the pair never really settled.
After the game Pellegrini told reporters: "I don't know if it's the worst (way to lose) but one of the worst, I think so.
"We played very well, especially in the second half. We were absolutely in control of the ball and the game.
"It's exactly what happened in the other defeats that we’ve had this year away – we have an important mistake to lose the game."
Following the final whistle Pellegrini failed to shake Mourinho's hand and the City boss continued by saying: "I didn’t expect anything else. It is a different way to celebrate from me. I didn’t shake hands. Because I didn’t want to."
"I repeat, I didn’t want to shake hands. I don’t want to say more."
It is no secret the pair did not see eye-to-eye in their time in Spain expect the feud to continue long into this season and beyond.
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