Premier League leaders Chelsea welcome high-flying Southampton to Stamford Bridge in a vital clash for both sides on Sunday.
After suffering the midweek disappointment of Champions League elimination, domestic success is now imperative for Chelsea if they wish to regard this season as a success. Meanwhile, for Ronald Koeman's top-four chasing Saints, three points is a must.
Here are the top five statistics ahead of Sunday's encounter:
1 - Chelsea have lost just one of their last 11 Premier League games against Southampton (W6 D4 L1). Meanwhile, the Blues are the only team in the Premier League to recover anything from a game where Southampton have taken the lead this season.
0 - Jose Mourinho's side are the only team in the top four divisions of English football who have not lost a home match in the league this season. To date, they have dropped points here on just two occasions, during draws with Burnley and Manchester City.
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2 - Eden Hazard has scored two Premier League goals against Southampton, both in the 45th minute. He netted the equaliser as both sides scored from their only attempts on target in the 1-1 draw back in December.
7 - Chelsea have conceded just seven goals in their last 21 Premier League matches at Stamford Bridge, keeping 16 clean sheets in that run. However, after winning 10 straight league matches at home, the Blues have now scored only once in each of their last three.
5 - Southampton's Sadio Mane has scored in five of his last seven Premier League starts - he also notched the opener when the two side's met before Christmas. His attacking contribution could prove key for the Saints.
Bonus: Southampton are the only team not to concede a penalty in the Premier League this season.