Few were anticipating a Liverpool win at the Etihad. Even fewer thought they would have victory all but wrapped up just after the half-hour mark
By the time Roberto Firmino opened his Reds account in the 32nd minute, adding to an Eliaquim Mangala own goal and Philippe Coutinho's composed second, the visitors were out of sight.
Sergio Aguero pulled one back before half-time but Manchester City were unable to produce a second-half comeback and missed out on the chance to reclaim top spot in the Premier League, and Martin Skrtel clinched victory for Liverpool late on.
Naturally, much of the praise on Twitter came the way of Jurgen Klopp.
https://twitter.com/danielstorey85/status/668127856980004865
While people were quick to point out that his predecessor was unlikely to ever produce such a performance from his players.
https://twitter.com/Aviation_Freak/status/668129307500388352
Raheem Sterling had an evening to forget against his former club.
https://twitter.com/tomwfootball/status/668145174590169088
https://twitter.com/ECSpacey26/status/668129142567796736
But he wasn't the only one to struggle.
https://twitter.com/Kunbelievable/status/668134631561129984
Liverpool fans were delighted for Firmino, who already seems to be kicking into gear under his new manager.
https://twitter.com/AnfieldRd96/status/668145489829830656
https://twitter.com/YNWABible/status/668145459689562112
https://twitter.com/paul_tomkins/status/668127528440242176
While the visitors' fourth goal brought a mixture of pride and shock.
https://twitter.com/BenMcAleer1/status/668143993344118785
https://twitter.com/thehuwdavies/status/668143833511821318
https://twitter.com/JacobSteinberg/status/668144099447447553
The win takes Liverpool level on points with Everton, who beat Aston Villa 4-0 earlier in the day, and you can tell the fans were delighted.
https://twitter.com/Hari_Sethi/status/668147063826333696
Though they weren't the only ones...
https://twitter.com/nathenmcvittie/status/668147534917976064
