Manchester City exacted revenge for their Premier League defeat to Chelsea earlier this month by knocking Jose Mourinho's Blues out of the FA Cup at the fifth round stage with a 2-0 victory on Saturday night.
As the better team for pretty much all of the match, City built on their early dominance when Stevan Jovetic enjoyed his best moment in English football with a stylish finish beyond Petr Cech just 16 minutes into the clash at the Etihad Stadium.
He and his club could have had more during what was a dominant first half, and despite Mourinho's best efforts he couldn't change the flow of traffic in the second period, either.
City substitute Samir Nasri settled the game as, just six minutes into his first appearance in a month following injury, he turned home David Silva's cut back to double the lead and end Chelsea's hopes.
The win serves as a huge boost to Manuel Pellegrini's side ahead of their clash with Barcelona in the Champions League on Tuesday, and keeps alive their hopes of an unprecedented quadruple this season.
Here are six lessons we learned from the Etihad Stadium.