The former City midfielder crashed home Liverpool’s second after Adam Lallana had slotted home from distance to leave keeper Joe Hart red faced and Roberto Firmino added the third in the second half.
Just three days after City lifted the Capital One Cup final after beating the Reds, these two met again.
Both needed wins for different reasons, Sunday’s winners City were looking to keep their Premier League title hopes on track.
While Jurgen Klopp was looking to spark a good finish in the league to show some progress since taking over in October.
There was also the return of Raheem Sterling to Anfield for the first time since his £49m move to City last summer.