Liverpool v Chelsea in numbers
Premier League leaders Chelsea play at Liverpool on Tuesday night.
Here, Press Association Sport looks at some of the key numbers ahead of the Anfield contest.
55 points - Chelsea have 30 points more than they had after 22 Premier League games last season.
One point - Liverpool have one more point than Arsenal did when leading the Premier League last term after 22 games, but are fourth, 10 points behind Chelsea.
15 - Premier League goals for Diego Costa. Sadio Mane is Liverpool's top scorer with nine, the same tally as Chelsea's Eden Hazard.
One - win from seven games for Liverpool while Mane was absent at the African Nations Cup. The victory was at League Two Plymouth in a FA Cup third-round replay.
15 - out of 16 Premier League wins for Chelsea in matches since successive defeats to Liverpool and Arsenal in September. The January 4 loss to Tottenham is the exception.
Nine - changes made by both sides for the FA Cup fourth round against Championship opposition. Liverpool lost to Wolves, Chelsea beat Brentford.
One - Premier League home loss this season for either side. Liverpool lost to Swansea in January and beat Chelsea at Stamford Bridge in September.
£50million - the amount Chelsea paid Liverpool for striker Fernando Torres on transfer deadline day in January 2011.
Five - successive seasons in which Chelsea and Liverpool met in the Champions League, from 2004-05 until 2008-09.
15 - the shirt numbers of Daniel Sturridge and Victor Moses. The players have played for both Liverpool and Chelsea.