Gareth McAuley touched the ball eight times in that half. EIGHT.

Just 60 fewer than Aaron Ramsey.

EIGHT.

Robert Chandler:  Özil, Bellerín and Monreal with 90 minutes and clean sheets can send me top to break my friend's 26 consecutive weeks on top!

Dwayne Pipe: I'm using my triple captain on Sanchez this week. With De Gea, Milner, Firmino, Alli, Kane & Sturridge I'm on 154 and counting!

lfcway: All the talk of fantasy points on #bbcfootball, external. says everything about the importance of this match. No one cares?

Joshua Dillow: What's more important here? The actual game of football or how people's gameweeks are going to work out?

Surprisingly, West Brom (below right) have had more of the ball in the final 18 yards of the pitch than Arsenal (below left). But it is from the area just outside the penalty area where the Gunners have been deadly.

Image source, .

The hosts have also been utterly dominant in the possession stakes - they've had the ball 71.7% of the time.  

Image source, PA

Half time. Met by the polite applause you'd expect at the announcement of a change of bowling at a Test match. Mid session. Before tea. 

Image source, Reuters

Mesut Ozil flirts with a yellow card after a high challenge on Claudio Yacob but ref Jon Moss settles for a stern word. Tony Pulis is not pleased about that and gives the officials some choice cuts from the technical area.

West Brom have had 27% of possession and are yet to have an effort on target. Though they did of course hit the bar. 

I'm with you on the Romelu Lukaku regret stakes J&C. He didn't show up!

Alexis Sanchez certainly has though. He's on a hat-trick and I would not back against it. West Brom are the definition of 'limited.' 

Kurt Booth: Two games in a week and now two goals in a game - I knew there was a reason I made Sanchez my fantasy league captain!

J&C: Left Gomes on the bench for Hennessey. Captained Iwobi instead of Aguero and put Lukaku on instead of Alli. Should have scored 131

Callum Jones: I doubled up on Arsenal defenders for the double gameweek, praying WBA don't score

I continue to be impressed by Mohamed Elneny. From what I've seen of Arsenal's new signing he looks a very useful addition. He starts a move which ends with Aaron Ramsey being felled in a dangerous area. Free-kick...

The host broadcaster is having a few technical issues.

Image source, Reuters

Lovely football from Arsenal as Hector Bellerin once more gets free down the right, he cuts it back to Mesut Ozil on the edge of the box. The German side-foots a tame shot straight at Ben Foster but the keeper somehow lets it through his legs. Think Massimo Taibi v Le Tissier!

Luckily for him and West Brom Craig Dawson is there to clear off the line...

Peter Campbell: If you're talking fantasy football, I tripled captained Coutinho, and had Aguero as my vice. Missed out on some serious points

Antony George: That Sanchez goal and a possibility of MOTM has in all probably sealed the title for me.

Sean: What about City fans who captained #Aguero, external in a double-game week of fantasy football?

I've got a triple-captained Aguero in my league. Absolute flier.

Image source, Reuters

West Brom know how to deliver a corner, that's for sure! Bent in with real pace, like a shot, and Gareth McAuley heads it against the top of the crossbar! Petr Cech was nowhere near it.

Mesut Ozil was the man 'marking' McAuley there. Interesting...

Image source, Opta

West Brom could not get near to Arsenal in the build up to the opener. The Gunners completed 12 passes before Alexis Sanchez's smart turn and finish.

They have now scored in all 20 of their Premier League games against Baggies - the best 100% record in the division.

Image source, Getty Images

West Brom force a corner in a rare attack, maybe their first actually, and it's whipped in by James McClean, right on top of Petr Cech. The keeper does well to get to it in heavy traffic but Alexis Sanchez then miscontrols the dropping ball and volleys against his own hand.

Referee Jon Moss is not interested in a very muted penalty appeal. 

Officially the best right-back in the Premier League Hector Bellerin tries his luck from a tight angle 25 yards out and he finds the fringes of the side-netting.

Great feet from Sandro as he Zidanes away from two men in the centre-circle and then buys a free-kick. When he looked up, mind, his only option was an increasingly isolated Saido Berahino. West Brom not full of options in attack. 

Paul: You're not wrong about crunch time in Fantasy Football. That Sanchez goal is vital in my title charge

Paul Thompson: All the Fantasy Football players who captained Sanchez in a double-game week celebrate with Gooners all around the country!

There's a good title race going on in BBC Sport towers actually. One player had opened up a mammoth-looking cushion at the weekend but this double gameweek, and that Alexis Sanchez goal, may have blown it open...