What a chance! Richarlison's free-kick is parried by Petr Cech, with an unmarked Roberto Pereyra following up. Unmarked from the edge of the six-yard box, he blasts over.

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Arsene Wenger is wearing a grey cardigan over a white-shirt-and-red-tie combo. He looks like he's going for his first holy communion. Watford are coming back into this one, enjoying more of the ball. Arsenal pressing sends them all the way back to Orestis Karnezis, though.

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Hand on heart, how many of us can say that they would recognise Axel Witsel? Impressive.

Steve Claridge
Ex-Premier League striker on BBC Radio 5 live

It has the promise of being a good game. Arsenal are getting forward and have taken the lead, and Watford have got into good areas twice and should have made more of them.

It's the sort of game that makes you wonder why Arsenal have so many problems. Then again, Watford are helping them look half-decent, too. Lots of space, Arsenal knocking it about, no sign of a challenge. Space down the left, ball comes in, Pierre-Emerick Aubameyang turns it in if he's an inch or two taller.

David Thackeray: In 1959, or thereabouts, I met Tommy Banks the great Bolton full back on Sutton station the morning after a match in London. He was carrying his boots in a see through plastic bag. He must have got on the wrong train.

Looking again at the goal, I may have been harsh on the Watford defence. Two defenders did sort of jump with Mustafi, but you'd have struggled to get a wet newspaper between them and the ground. From eight yards out, the header was back across goal, inside the keeper's right-hand post.

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For stats fans, that was Arsenal's 1,000th home goal in the Premier League era (when football began). At the other end, Petr Cech has to save from Abdoulaye Doucouré.

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Steve Claridge
Ex-Premier League striker on BBC Radio 5 live

Mustafi wouldn't be the only person who's been fraught defensively for Arsenal this season. But he does get goals when he goes forward, and yet again, that's a wonderful header across goal. He gave the keeper no chance. He's a good finisher with his head.

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Steve Claridge
Ex-Premier League striker on BBC Radio 5 live

They've got Ozil in the middle, in that number 10 role, and he's already played that ball through for Aubameyang. That's where you want him. Get him on the ball and get him playing. I reckon it's 4-2-3-1 for Arsenal.

Arsenal are bossing the early stages and their fans have responded, singing the name of their team. Watford haven't had a kick.

Image source, Reuters

Steve Claridge
Ex-Premier League striker on BBC Radio 5 live

There's no antagonism or animosity amongst the fans here today, which there would have been if the Milan result went against them.

Early chance. Mesut Ozil's pass, Pierre-Emerick Aubameyang running on, off the shoulder of the last defender. Through on goal, but the shot saved by the legs of Orestis Karnezis.

Steve Claridge
Ex-Premier League striker on BBC Radio 5 live

The Europa League's the priority now for Arsenal, but the ground's about half full.

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Under way. Kits as you would expect. Arsenal in red, Watford in gold. Home side attacking the goal to the right as we look on...

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BBC Radio 5 live

Arsene Wenger on BBC Radio 5 live: "When you have big disappointments, you forget that you have big qualities. But in one week you don't become a bad player. We want to show that we have the qualities and the mental resources, and we have to show that till the end of the season."

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The players are on the pitch, doing the shaky-hand thing. If you've just joined us and need a reminder of the teams, allow me...

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