London: Southampton gained revenge for 9-0 thrashing at the hands of Leicester in October to continue their resurgence with a 2-1 win at the Foxes, while Chelsea and Manchester United secured comfortable wins in the race for the top-four on Saturday.
The Saints claimed their fifth win in six games at the King Power Stadium as they came from behind against the side second in the table.
Dennis Praet fired the hosts into an early lead, but Stuart Armstrong's deflected effort quickly pulled Ralph Hassenhuttl's men level.
Danny Ings then scored his 10th goal in 11 games eight minutes from time and the visitors survived a late scare when Jonny Evans's header was ruled out by VAR for offside.
Liverpool can now extend their lead at the top to 16 points when they travel to Tottenham later on Saturday.
Chelsea put their struggles at Stamford Bridge behind them with a 3-0 win over Burnley, who slide ever closer to the bottom three.
United ended a three-game winless run in style with Marcus Rashford and Anthony Martial once again leading the way for Ole Gunnar Solskjaer's men in a 4-0 rout of bottom-of-the-table Norwich.
Rashford marked his 200th appearance for the club with a brace as the England international opened the floodgates by meeting Juan Mata's perfectly measured cross at the back post.
Martial then glanced home the third with his head from Mata's cross and Mason Greenwood came off the bench to round off United's biggest league win since the opening day of the season to remain five points adrift of Chelsea in fifth.
Arsenal are now 11 points off the Champions League places as their revival under Mikel Arteta was halted by a red card for captain Pierre-Emerick Aubameyang in a 1-1 draw at Crystal Palace.
Aubameyang finished off a flowing move including Mesut Ozil and Alexandre Lacazette to give the Gunners a deserved first half lead.
However, the Eagles levelled thanks to Jordan Ayew's deflected effort before a VAR review turned a yellow card for Aubameyang into a red for a reckless challenge on Max Meyer.
Arsenal could still have own all three points in the closing stages as Nicolas Pepe hit the post and Vicente Guaita made a brilliant save to deny Lacazette on the rebound.
Wolves bid for a return to European football next season is also faltering as they were held 1-1 at home by Newcastle.
Wolves have now taken just one point from their last three league games to slip to seventh and eight points behind Chelsea.
Everton bounced back from an embarrassing FA Cup exit to a much-changed and youthful Liverpool side last weekend thanks to a moment of magic from Richarlison to beat Brighton 1-0.