While Liverpool dazzled, their old rivals Manchester United ended a four-match winless run in the league as goals from Paul Pogba and Zlatan Ibrahimovic secured a much-needed 3-1 victory at Swansea yesterday.
Liverpool have emerged as genuine title contenders and Jurgen Klopp's side moved one point clear of second placed Chelsea thanks to a scintillating goal spree at Anfield.
The Reds took the lead in the 27th minute when Senegal winger Mane met Philippe Coutinho's corner with a header that looped past Watford goalkeeper Heurelho Gomes.
Klopp's team were three up two minutes before half-time as Emre Can arrived unmarked at the far post to head in Adam Lallana's cross.
Also Read
The goals kept coming and Firmino added the fourth in the 57th minute, the Brazilian finishing off Lallana's cross, before Mane got his second in the 60th minute with a clinical close-range effort from Firmino's pass.
Daryl Janmaat notched his first goal for Watford in the 75th minute, but there was still time for Liverpool to complete the demolition in the 90th minute through Georginio Wijnaldum's tap-in.
"It's better than being 10th, or whatever. It's very important to collect the points for the final third of the season," Klopp said of his team's position.
"On a good day, we are really difficult to play and that's the most important thing we can say."
At the Emirates Stadium, Harry Kane marked his return from injury with the equaliser as Tottenham kept their hated neighbours from the Premier League summit.
- Frustration -
===============
The result prevented Arsenal from climbing above Chelsea and Manchester City and opening up a six-point gap over Tottenham, who remain fifth, three points below Arsene Wenger's men and four points off first place.
Wenger was angered by Tottenham's penalty and said: "From where I sit, it looked harsh. It didn't look a deliberate foul or that he was dangerous to score."
Despite his frustration over the spot-kick, Wenger accepted the result was "fair" and Tottenham boss Mauricio Pochettino agreed.
After a difficult period for Pogba and Ibrahimovic, United's star duo were back on song at the Liberty Stadium.
France midfielder Pogba put United ahead in the 15th minute with a sumptuous volley and Swedish striker Ibrahimovic bagged the second six minutes later with a shot that Swansea goalkeeper Lukasz Fabianski might feel he should have saved.
Ibrahimovic followed his first league goal since September with another one in the 33rd minute as he lashed in from Wayne Rooney's pass.
Swansea defender Mike van der Hoorn reduced the deficit in the 69th minute and there was late frustration for Ibrahimovic when he picked up a booking that rules him out of United's next match against Arsenal.
"But one thing is a striker who does not score and does nothing for the team. He always does everything for the team."
West Bromwich Albion moved away from the relegation zone with a 2-1 win at Leicester.
James Morrison put Albion ahead in the 52nd minute before Algeria striker Islam Slimani levelled for the champions three minutes later.
Matt Phillips hit Albion's winner with 18 minutes left and Leicester have now lost five times already in their miserable title defence.
Elsewhere, Hull staged a second half fightback to end their barren run with a 2-1 victory over Southampton at the KCOM Stadium.