Gerard Deulofeu - 25 shots, 0 goals - has had more shots than any other Premier League player this season without scoring.

Fahad Khan: How many times have Azpilicueta given the ball away today !? Reece James needs to get a shot into this team.

Pat Nevin
Former Chelsea and Scotland winger on BBC Radio 5 Live

Chelsea have shocked me more than anybody this season. I thought they would have been mid-table considering all the changes they have made. I am stunned by how well they are doing and how good they look.

Image source, Getty Images

Alistair Magowan
BBC Sport at Vicarage Road

The game is a lot more evenly balanced now after Chelsea's early domination and that Gerard Deulofeu's chance has given a thirsty home support cause to be hopeful.

Quique Sanchez Flores has been screaming at Abdoulaye Doucoure to get tighter on Jorginho and Mateo Kovacic but he’s not had much joy yet.

Too easy for Chelsea.

The Premier League's bottom club are playing like a team rooted to the bottom of the table.

One minute of additional time. What wise words does Quique Sanchez Flores have for his players at half-time?

So close to 2-0 as Mason Mount thunders an attempt towards the net which Ben Foster does well to tip on to his bar.

Foster is having a great game. He's the only Watford player who is.

Chelsea are getting a little careless as half-time approaches.

Cesar Azpilicueta needlessly gives the ball away. Fortunately for the visitors, Watford are lacking any sort of creativity and cannot fashion a chance.

They've done very little in the first half but Watford almost grab an equaliser out of the blue.

It's a superb piece of individual skill by Gerard Deulofeu who whips in a low fizzing shot from outside the penalty area which flashes just wide.

Better from Watford!

Is there another team that loves playing away from home as much as Chelsea right now?

Having won their previous six games on the road in all competitions, they're bossing Watford.

Another sumptuous Chelsea move. Mason Mount is at the heart of it and very nearly picks out Willian who is standing around the penalty spot.

'Super....Super Frank, Super...Super Frank'.

Chelsea's travelling fans are loving this.

Half an hour on the clock. Chelsea have had a whopping 71% possession. A reminder, Chelsea are the away team.

It's a miserable old evening weather-wise at Vicarage Road. And Watford are doing little to lift their fans. Their team is five points from safety - and they're very much second best against Chelsea.

Frank Lampard is on his feet in the technical area. The Chelsea boss will be pleased with what he has seen so far. It's been one way traffic. Lampard's only complaint will be that his side should have scored more.

This is gold if you like your stats...

Tammy Abraham has scored seven goals in his six away appearances this season - only Kevin Phillips in 1999-00, Edin Dzeko in 2011-12 and Sergio Aguero in 2016-17 (all eight) have scored more in their opening six away appearances in a Premier League season.

How is this only 1-0?

Chelsea are flooding into Watford's penalty area at an alarming rate.

Another free-flowing move involving the busy Willian finds Cesar Azpilicueta who fizzes the ball across the six-yard area.

It takes a deflection and goes out for a corner.

Another blow for Watford as skipper Craig Cathcart, who needed treatment earlier, is unable to carry on. Adrian Mariappa is his replacement.

Bob Moss: I fear for Watford, could be a real drubbing tonight.