Aaron Ramsey floats a cross into the area, but it is too slow and too close to Heurelho Gomes, who has plenty of time to stroll off his line and make the catch.

Have to agree Flobalob (not something I thought I'd ever write). Arsenal definitely look a little unsettled by Watford's physicality. Seven minutes into this half and they are yet to string any meaningful passes together.

Flobalob: Arsenal are getting bullied by Watford so far.

Paul Collins: I wonder what Ramsey has do to be dropped. Sorry, but he's not done much at all this season. Needs a break from the first XI for a bit.

Eddie: Ozil needs to help Sanchez grab this match by the scruff of the neck. Arsenal pedestrian so far.

Image source, Getty Images

We have our first yellow card of the game as Watford's Nyom goes in the book for a bit of time wasting.

Wa wa waaaaa. Comedy music needed as Heurelho Gomes horribly kicks the ball out into touch. Ironic cheers from the away fans, possibly even some home fans too.

In fairness, it was the frightening image of a charging Theo Walcott that unsettled the Watford keeper.

No changes at the break as Watford get the second half up and running.

Image source, PA

RT: World Cup winner he may be but Mertersaker is Arsenal's weak link. Cech doesn't come for that if itis Kocielny  

Max Baggins-Craig: Well well, a deserved HT 0-0 for Watford, seeing some good old fashioned football by them. Arsenal's CL form kickin in perhaps?  

Image source, Opta

It was probably to be expected that Arsenal would dominate the possession stats. They initially looked like they had continued from where they had left off against Manchester United with an aggressive start, but the longer things did not go their way, the more the tempo of their play dropped. 

A change needed at the break? The pace of Alex Oxlade-Chamberlain could help unsettle a largely untroubled Watford defence.

BBC Three Counties Radio
Former Watford midfielder Derek Payne at Vicarage Road

"Before this fixture a lot of people were predicting that Watford would find this hard. But both sides have been pretty even, and both have enjoyed clear chances. 

"Arsene Wenger won't be happy, because Arsenal haven't performed, and they let their tempo drop as the half went on. Maybe there is tiredness in their legs, as lots of them played during the international break."

The home fans applaud their team off. Watford have done a good job on Arsenal so far. A tough evening for the Gunners. They had a chance just before the whistle blew, but Aaron Ramsey fired wide. He's not got his shooting boots on today.

Image source, Opta

Where's Walcott? I've barely mentioned him in this half after an early chance. He's not seen too much of the ball, having had 13 touches of it. Arsenal need to get him into the game.

Cheers Derek. I guess I may not be in the minority after all. 

Almost a moment of embarrassment for Arsenal as Petr Cech comes out of his box to close down a ball over the top. Per Mertesacker attempts to hold off Troy Deeney, but heads the ball on to the top of Cech's arm. Home fans appeal for handball, referee waves play on.

Image source, AFP/GETTY

BBC Three Counties Radio
Former Watford midfielder Derek Payne at Vicarage Road

"Watford have more than held there own here, and the Hornets players can be proud of their performances so far. Great entertainment for the home crowd."

Good awareness from Petr Cech as he changes direction quickly to grab a deflected shot. No goals, but I'd say it has been a pretty entertaining game so far. I might be in the minority on that, though...

Dr Spits: Somebody do a Ramsey horrible misses compilation, so we can see if there's a scenario he's yet to miss from.

Shohidur Rahman: Watford are a proper old school side. Two banks of four then the two up front linking with each other. Like it.

Charles Meyrick: Arsene Wenger is Arsenal. I dread the day that he leaves us. He's welcome beyond 2017 as far as I am concerned.

Get in touch using #bbcfootball, external on Twitter, text on 81111 from UK mobiles (include your name) or head over to the BBC Sport Facebook page, external.

The ping pong nature of this match continues as Arsenal follow up Watford's chance with a couple of their own. 

First, Nyom superbly stabs behind Hector Bellerin's inviting ball across the face of goal, before Laurent Koscielney shoots wide from the corner.

Did you know (I'm sure you did) that Alexis Sanchez and Odion Ighalo go way back? The two were team-mates at Udinese between 2008 and 2011. Both have been heavily involved for their respective sides in this half, but neither have had a real chance on goal yet.

Ighalo helps build another Watford attack as he feeds a pass to Nathan Ake, but he gets his shot all wrong.

Image source, AFP/GETTY

BBC Three Counties Radio
Former Watford midfielder Derek Payne at Vicarage Road

"Ramsey should finish that [at 28 mins], having made such a great run. His body position was not quite right, but after the great intricate play from Ozil showing Arsenal at their best, what a waste."

The hosts go straight up the other end of the pitch and Odion Ighalo races clear. The top scorer in English football in 2015 must surely score? No. He uncharacteristically stabs wide. Should have done better.

This, though, is what Arsenal are capable of.

Watford are seemingly in no danger as Alexis Sanchez has the ball about 35 yards from goal. Over on the far right of the pitch, Aaron Ramsey has his arm up and he is racing into the area. Cazorla flights a ball beautifully but Heurelho Gomes is out quickly and blocks Ramsey's shot.

Ramsey gnashes his teeth in frustration.

Image source, AFP/GETTY