Troy Deeney is going to stay out and enjoy this one for a while - his goal was the icing on the Ismaila Sarr-baked cake. High-fives and fist bumps all round from the Watford skipper.

I reckon Arsenal's Invincibles of 2003-04 owe Nigel Pearson a drink...

Image source, Getty Images

And that's it!

A superb performance and what a fantastic win for Watford.

Liverpool's unbeaten Premier League streak - and run of 18 successive wins - comes to an end in dramatic fashion.

Watford have done a real job on Liverpool this evening. Superb in defence, ruthless on the counter attack - could have had even more. Nigel Pearson has got this right on the money.

A brief rendition of You'll Never Walk Alone from the visiting fans.

This result probably won't do much harm in Liverpool's bid for a first Premier League title, but it is massive for Watford and their hopes of survival.

Dan: Whilst everyone's going over the top about Liverpool not being able to claim the invincibles "trophy" a friendly reminder that we can now win the league at Man City.

Anonymous: Our first loss this season...unexpected to Watford but they have played well. We where never going to get through the season without a defeat so we have got it out the way.Sign of a great team is how they respond next game.

James: Liverpool were lucky to beat Watford at Anfield. We have rode our luck on some games, but I'm confident we should get 5 more wins... but wake up call.

Michael: Liverpool are really missing Henderson & Milner, they just don’t have the same intensity.

Even Roberto Pereyra is defending like Paolo Maldini... he slides in and takes it off Sadio Mane. Watford clear but Virgil van Dijk tries his luck from about 40 yards - it sails over the bar, and just about sums up Liverpool's evening.

Mohamed Salah tries to get away on the right of the penalty area but his cross flicks up into the air and is easily gathered by goalkeeper Ben Foster.

Every loose touch from a Liverpool player is being cheered by the home crowd.

Watford are in dreamland.

Nigel Pearson is demanding his side get a clean sheet now.

Liverpool are having plenty of the ball but have created very little - just one shot on target in the whole match for Jurgen Klopp's side.

Ismaila Sarr, on a hat-trick, wriggles on to Etienne Capoue's well-timed pass with just Alisson to beat, but sends it wide! What a chance for his third.

That will be Sarr's last involvement, too. He gets a well-earned rest.

It's been a frustrating afternoon for Sadio Mane, who is fought off the ball by Adam Masina.

Trent Alexander-Arnold whips a dangerous delivery across the six-yard box but Christian Kabasele does well to get across and clear.

Watford have defended tremendously.

Roberto Firmino makes way for Liverpool. Takumi Minamino is on for the league leaders.

Tommy: Looks like the single greatest achievement by an English team will remain intact

Nick: Oh no Liverpool are going to lose their first game this season what an average team!I think most Liverpool fans would agree it's about the league this year not the invincibles, I'm not worried.

Richard: Is this like boxing where Watford are now champions of Europe and Premier League champions elect?

Bob: Arsenal must be delirious right now. They should send Watford a nice hamper.

Ismaila Sarr has been superb today. A match-winning performance from the Watford forward - two goals, one assist. Who had him in their fantasy team?!

Liverpool are three goals behind in a Premier League game for the first time since October 2017 against Spurs.

Watford fans want four...

That goal lifts Watford out of the bottom three on goal difference, as it stands...

Huge cheers around Vicarage Road as Etienne Capoue wins a free-kick.

The hosts are sitting deeper and deeper.

Twenty minutes for Liverpool to keep their unbeaten Premier League run this season going, and even to grab that record 19th successive win...