If Damien Delaney has any friends or family looking at this - look away for a second.

Palace's vice-skipper was responsible for Crystal Palace's last own goal - in May 2014 against Liverpool. Oops.

Was Alexis Sanchez's header on target? It's officially a Damien Delaney own goal - here's how it looks in graphic form. 

A 14-pass move, including the throw.

Image source, .

Palace should be level. Hector Bellerin commits himself on the right, allowing Jason Puncheon to chest the ball down and progress into the penalty area. His low shot is too close to goalkeeper Peter Cech though.

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Ex-QPR forward Bradley Allen on London 94.9: "It was a great powering jump from Sanchez. Delaney couldn't get out of the way - he was slightly off balance."

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Arsenal continue to threaten. Santi Cazorla threads a fine ball into Aaron Ramsey's path inside the penalty area but his shot is again blocked.

Again Arsenal waste a dangerous-looking position as the free kick is comfortably cleared. This match is anyone's. It is a crackerjack at the moment.

A flowing move from Arsenal involving Santi Cazorla and Alexis Sanchez. Like a knife through butter as they work through Palace's midfield. The ball ends up at Aaron Ramsey on the right but his low cross is cleared with Mesut Ozil waiting to tap home.

A sublime bit of skill from Ozil then sees Wilfried Zaha chop him down on the bye line. Free-kick and chance...

Almost a brilliant start for the hosts. Wilfried Zaha has loads of space to drill in a low cross from the right and Connor Wickham, on his home debut, diverts the ball against the post from close range. A let-off for Arsenal.

That substitution sees Jason Puncheon pushed out to the left flank in place of Bolasie, with Jordon Mutch playing centrally.

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Andrew Hook:  Same old Arsenal. Dominant, can't get the second and then no commitment from Koscielny. Bring back Adams and Keown 

Engr Buchi Nwachukwu:  Its clear Chelsea Fc bus parking policy made Cech look so good. Now in a team that loves open play, all I see is lapses.

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Is this going to be a 12th win? Winger Yannick Bolasie is replaced by central midfielder Jordon Mutch. We are underway.

Arsenal midfielder Francis Coquelin is going to have to be very, very careful.

He made more fouls than any other player in the first half - three. He was booked for one and could easily have been booked for the other two.

Walking on a tightrope comes to mind - metaphorically, not literally obviously. 

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You can click on the 'Highlights' tab at the top of the page to watch Saturday's interviews with the Premier League managers.

Santi Cazorla was another who was everywhere for Arsenal in that first half. The Spaniard made 52 passes at a success rate of 92.5%. Noone played more passes.

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Adam Bolton:  Those 10 points that Cech was supposed to earn us this season... Can we have them now please?

Ross:  That eagle at Palace looks a lot like Arsene Wenger!

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Bradley Allen on London 94.9: "Two contentious decisions on the stroke of half-time. What would be refreshing if referee Lee Mason said after the match 'sorry I made a mistake'. But it's been a breathtaking football match."

Mesut Ozil has enjoyed himself today. Just one unsuccessful pass for him, demonstrated by the red below. Everything has been in Arsenal's attacking half as well.

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