Simon Mignolet 7 - the former Sunderland stopper didn't have a great deal to do, and had no chance with Ki's header nor Lee Cattermole's shot that rattled the crossbar.
Glen Johnson 6 - had some trouble with Adam Johnson when he came on, but also made some puzzling decisions in the final third, where the England international is usually so effective.
Martin Skrtel 7 - the towering defender coped well with the threat of Connor Wickham and Jozy Altidore, and made a number of key clearances when Sunderland piled the pressure on late into the game.
Daniel Agger 7 - question marks remain over the Dane's ability in the air as he was caught out for Sunderland's goal, but Agger performed solidly otherwise.
John Flanagan 6 - wasn't quite as impressive as he has been in recent weeks, and was caught napping for Sunderland's goal, as he was too busy ball watching instead of marking his man.
Steven Gerrard 8 - struck the crucial opening goal with a superbly taken free kick from the edge of the box, and was as influential as ever in the Liverpool midfield.
Joe Allen 6 - didn't really impose himself on the game and didn't get on the ball as much as we are used to, but Allen worked hard throughout in a hard-fought win.
Jordan Henderson 7 - showed the willingness to get on the ball, keep possession and to break into the box as he showed his ability against his former club with another decent display.
Philippe Coutinho 9 - the diminutive Brazilian was superb, showing his vision and creativity all night long, and was always influential in Liverpool's attacks with his deft touch and guile.
Luis Suarez 8 - Suarez was as busy as ever, getting on the ball and driving at the heart of the Sunderland defence, but it wasn't his night in front of goal, as he had seven shots - none of them went in, which is unlike the Uruguayan.
Daniel Sturridge 9 - bagged a vital second goal just after half time with a curling left footed strike, and went close a number of other times, including when he smashed the ball against the crossbar. His pace was a constant threat to the Sunderland defence throughout.
Raheem Sterling 6 - Was introduced in place of Sturridge with around 15 minutes to play, but with Liverpool spending most of their time defending, Sterling didn't get chance to make much of an impact.