Here are the top five statistics ahead of Sunday's encounter:
1 - Southampton have won just one of the last 10 league matches against Chelsea (W1 D3 L6), while winning just one of their past five meetings against the Stamford Bridge outfit at St Mary’s Stadium, losing 3 times and drawing the other.
The Blues have scored in each of their last nine league visits, netting more than once six times in this run.
5 - Cesc Fabregas is the source of creativity for the Blues. The former Arsenal midfielder is only the third player in Premier League history to rack up double figures for assists in five separate seasons (Ryan Giggs and Wayne Rooney). He has created a league-best 59 key passes this term, while setting-up an impressive 12 goals.
|Stewart Downing||West Ham||17||52||6|
7 - Graziano Pelle is the dangerman for Southampton; he has scored seven (of his eight) goals in his last eight Premier League games at St Mary’s.
Meanwhile, Chelsea will need to be wary of Saints striker Shane Long, who has netted three times in his last four starts against the London club.
|Team||Appearances||Goals||Shot Conversion Rate (%)|
14 - Despite a patchy run of results in the build-up to the Christmas period, Southampton have maintained their impressive defensive record.
The club have conceded just 14 goals this season, while keeping six clean sheets in their last nine home league matches.
Chelsea enter this fixture with the best defensive record in the division, having kept clean sheets in 6 of the last seven Premier League games.
|Games Played||Goals Conceded||Clean Sheets|
11 - Chelsea have been particularly effective from set pieces this season, scoring a total 11 goals from dead ball situations - only Sam Allardyce's West Ham United have managed as many.
John Terry has proven a distinct threat in recent weeks, scoring twice in successive victories. The Chelsea skipper opened the scoring against both Stoke City and West Ham.
|Free-kick Assist||Free-kick Scored||Penalty Scored|