No Alexis Sanchez in Arsenal squad, Mesut Ozil returns
Palace's only loss in last 12 league games came against Gunners
Arsenal 4-1 Crystal Palace
And that's it - a remarkable early blast was enough for Arsenal, while Palace's recent improvement seemed a long, long way away during a poor first half.
Image source, EPAArsenal 4-1 Crystal Palace
James Tomkins tangles with Alexandre Lacazette and while he got some of the ball, he may have also caught the man as well - but no penalty given.
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Richard Pettinger: No goals for nearly an hour. Wenger out.
Reilly: No goals for Arsenal in this half? That's it, #WengerOut
Image source, Rex FeaturesArsenal 4-1 Crystal Palace
Four minutes are being added on.
Arsenal 4-1 Crystal Palace
Cabaye is carried off on a stretcher with what looks like a knee injury and is replaced by Jairo Riedewald.
Image source, ReutersArsenal 4-1 Crystal Palace
Yohan Cabaye is down injured and after a lot of booing from Palace fans Hector Bellerin eventually puts the ball out. No-one seems very happy with that decision either way.
Arsenal 4-1 Crystal Palace
Jairo Riedewald is warming up for Palace, who are striving to reduce the arrears even more.
Arsenal 4-1 Crystal Palace
Alex Iwobi is off, replaced by Sead Kolasinac.
Image source, Reuters
Petr Cech's quest for a 200th Premier League clean sheet goes on, after Luka Milivojevic latches on to a Christian Benteke knock-down in the box to volley the ball into the far corner.
Is the comeback on?
Image source, PAArsenal 4-0 Crystal Palace
Arsenal win a corner after Hector Bellerin sees his shot rebound off Patrick van Anholt, but Palace's defence holds firm this time.
Arsenal 4-0 Crystal Palace
Mesut Ozil's superb afternoon is over, he is replaced by 18-year-old Reiss Nelson, making his Premier League debut.
Image source, EPAArsenal 4-0 Crystal Palace
Mohamed Elneny slams a shot from a tight angle on target, but Wayne Hennessey blocks.
Arsenal 4-0 Crystal Palace
Wilfried Zaha hits the deck again near the edge of the box, after a challenge from Ainsley Maitland-Niles, but once again play is waved on.
Image source, Getty ImagesArsenal 4-0 Crystal Palace
Wilshere strolls back on, but the ex-Schalke defender is still warming up.
Arsenal 4-0 Crystal Palace
Jack Wilshere is down with a head injury after he collided with James McArthur's knee as he fell to the floor.
Sead Kolasinac may be coming on anyway, but Wilshere looks groggy.
Image source, ReutersArsenal 4-0 Crystal Palace
Wilfried Zaha and Mohamed Elneny tangle on the edge of the box, Zaha goes down right on the line but there's neither a free kick or a penalty given by Chris Kavanagh.
Arsenal 4-0 Crystal Palace
Christian Benteke spurns a chance to reduce the arrears, slamming a shot at Petr Cech from inside the box - although had the Belgian striker looked up he may have seen Wilfried Zaha in space to his left.
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Edwin: Arsenal perfomance shows they have never lacked quality. What they lack is good management of the quality.
Wale: I dare Palace to do a Newcastle here today.
David: Arsenal crisis in crisis.
Arsenal 4-0 Crystal Palace
The Gunners are warming up and Alexandre Lacazette is racing on to another ball over the top - only to be flagged again.
Arsenal 4-0 Crystal Palace
Palace win their ninth corner of the match, but like the previous eight it comes to nothing.
Arsenal break at pace, and Alex Iwobi goes one on one with Wayne Hennessey, who stands up well and blocks the shot to keep it at 'only' 4-0.