Stoke City players were full of celebration on Twitter, however.
The defending Premier League champions were beaten 1-0 by Mark Hughes' men at the Etihad Stadium on Saturday and Kompany was understandably unhappy after the defeat.
However, the Belgian was also disappointed in the referee's performance, suggesting that the scoreline was not the only aspect of his ire.
At one point, City were denied a penalty when Yaya Toure was brought down in the box - and Kompany clearly wasn't happy with the decision.
That, as well as the result, has prompted his frustration, although he has pledged to move on and now concentrate on his international duty for Belgium.
For the visiting players, though, it was a different story on social media.
The Potters had failed to score at the Etihad Stadium in their last five visits - that was until Mame Biram Diouf netted their side's second-half winner today.
It is no surprise, then, that goalkeeper Begovic has described it as 'a day for everyone at the club to remember,' while Muniesa hailed the 'amazing victory.'
Was Stoke's win unfair on Manchester City?