Premier League stats: Olivier Giroud, Burnley, Crystal Palace & Wilfried Zaha

Burnley could qualify for the Europa League with a top-seven finish in the league

Chelsea scored three goals in eight minutes to beat Southampton, while Burnley kept their European hopes alive with a 2-1 victory over Leicester at Turf Moor.

Crystal Palace moved six points clear of the relegation zone with victory over Brighton, Huddersfield also boosted their survival chances with a 1-0 win against Watford and Everton were held to a 1-1 draw by Swansea at the Liberty Stadium.

Here are some of the day's best Premier League stats:

• Chelsea's Olivier Giroud has now scored 19 Premier League goals as a substitute after netting two in eight minutes when he came on against Southampton. Bournemouth striker Jermain Defoe, with 24, is the only player to have scored more.

• The Blues won a Premier League game from two goals down for the first time since August 2002, when they beat Charlton Athletic 3-2 under Claudio Ranieri.

• Burnley have won five consecutive matches in the top flight for the first time since November 1968.

• Leicester striker Jamie Vardy has been on the losing side in eight games this season when he has scored - a record for a single Premier League campaign.

• Crystal Palace's 3-2 victory over Brighton saw five goals scored in the first half, which is the most in the league this season.

• Palace forward Wilfried Zaha netted his first headed league goal and scored twice in the same Premier League match for the first time.

• Watford have picked up one point from a possible 30 away from home since December.

• Huddersfield have won two of their past four league games at home after failing to win any of the previous five.

• Swansea have conceded 13 own goals in the Premier League since 2014-15 - five more than any other side.

• Since keeping two clean sheets in December, Everton have conceded in their past seven Premier League games on the road.