83% possession for Liverpool.

Ouch.

Image source, Opta

Urban Bourbon: Sarr is exactly the type of footballer that Klopp would turn into world class. Sign him up please!

For a split-second Ismaila Sarr was eyeing up a loose ball but the leg of Virgil van Dijk hooks it away with ease.

Liverpool are utterly dominant but they could really do with a second.

Sadio Mane slips it through to Andy Robertson but his low cross is blocked.

Juan Hernandez does well to win a free-kick off Robertson straight afterwards.

Watford try to break but there's too many Liverpool defenders back behind the ball.

It goes up the other end with Mohamed Salah, who is dancing into the area, but Moussa Sissoko puts in an excellent tackle.

Danny Rose has an issue and needs a bit of treatment.

Image source, Getty Images

Adam Masina gets his head on a second successive corner but Liverpool have the ball back. Virgil van Dijk stays up.

Moussa Sissoko then gets the better of Trent Alexander-Arnold but it's a throw-in Liverpool's way.

The Retrospective: Do not understand how Watford have managed to get 7 points so far this season

Seth Gogo Egoeh: I don't ever remember seeing a team have a passing accuracy of less than 50% after 30 minutes until Watford showed up today! This is incredible!

Image source, Getty Images

Another corner for Liverpool won by Sadio Mane.

Trent Alexander-Arnold flicks it over the top for Mohamed Salah with the outside of his boot first time.

Salah chests down the awkward bounce but is pushed wide. Liverpool retain possession and switch it across to the far side.

That chance for Watford came from a cheap backheel from Sadio Mane in the middle. Tried to be too cute in midfield.

The goalscorer is penalised for a little shove on William Troost-Ekong now too.

Dangerous signs for Liverpool...

Ismaila Sarr is slipped in, he finds Juan Hernandez and Trent Alexander-Arnold makes an excellent last-ditch tackle to block his shot when he's one-on-one with the keeper.

The flag goes up anyway but Liverpool need to be wary.

Trent Alexander-Arnold punches it through to Roberto Firmino. He gets the ball stuck in his feet and Naby Keita blocks the Watford clearance to concede a goal kick.

Image source, Getty Images

Ismaila Sarr sneaks in behind Andy Robertson and he's picked out by a long ball from Kiko Femenia.

The flag stays down initially, Liverpool get players back, then the offside decision is made. Groans around Vicarage Road...

Simon Stone
BBC Sport at Vicarage Road

Mo Salah will be really disappointed with that. He was clear and onside but a mis-control cost him dear. Superb pass from Trent Alexander-Arnold though.

Watford cannot cope with Liverpool's movement.

Unless something changes, the visitors will run away with this.

Jurgen Klopp is barking orders at his players. He must sense this is the time to really extend their tally.

Claudio Ranieri is passive. How does he sort this?

Armchair Football Fan: There's only been one team on the pitch so far, and it's not been Watford. LFC absolutely outstanding. Suspect opposition set up maybe l, but they've utterly dominated.

Aidan Mifsud: A Villa fan has to admit that is a simply beautiful goal from LFC. Beautiful because Salah and Mane made the technique and execution look so incredibly simple. No fuss.

A rare mistake from Mohamed Salah.

Trent Alexander-Arnold whips in a brilliant ball for Salah. His touch is way too heavy and Ben Foster races out to make a crucial block.

Salah waves his arms in frustration. He was in. Should have been 2-0.