Postpublished at 93 mins
Arsenal 2-0 Chelsea
Arsenal, as they have been all game, are superbly organised at the back. Jorginho tries to dink a ball over the top but, with a sea of red shirts in front of him, can only send it harmlessly out of play.
Lacazette gives Arsenal lead with superbly taken goal
Koscielny puts ball into net with his shoulder
Arsenal now three points behind fourth-placed Chelsea
Michael Emons
Arsenal 2-0 Chelsea
Arsenal, as they have been all game, are superbly organised at the back. Jorginho tries to dink a ball over the top but, with a sea of red shirts in front of him, can only send it harmlessly out of play.
Arsenal 2-0 Chelsea
Six minutes of injury time, with it being so high because of that injury to Hector Bellerin, carried off on a stretcher.
Arsenal 2-0 Chelsea
Lucas Torreira had cramp a few minutes ago and has now been clattered by Marcos Alonso. A painful few minutes for the lad.
Arsenal 2-0 Chelsea
Playing this way will send Hazard on his way to Madrid!
Nick, Northants
Hudson-Odoi should've been brought on at half time...not with ten minutes to go. If I was him, I'd be off to Bayern tomorrow!
Carl, Wokingham
Arsenal 2-0 Chelsea
Cramp for Lucas Torreira, but he's going to have to stretch it out and stay on as Arsenal have already made their three changes.
Arsenal 2-0 Chelsea
Alonso strikes at goal, but Bernd Leno is down quickly and pushes it away with both hands. That's their first shot on target with only minutes remaining. Sarri-ball - needs work.
#bbcfootball or text 81111 (UK only)
Bring in Lampard and Terry next season, get rid of Sarri he hasn't a clue how to change a game, we are losing to a very very average Arsenal team.
Keith, London
So fed up with Sarri. It's not the losing but the failure to put trust in young English talent and our one dimensional tactics
John, Kent
No Chelsea goal, No shots on target. No direction from the manager. Step aside Sarri you're clearly not up to the task
Dave, Wickford
Arsenal 2-0 Chelsea
One last change for Chelsea, one last throw of the dice. Callum Hudson-Odoi on for his third Premier League appearance of the season, all off the bench, with Pedro replaced.
Arsenal 2-0 Chelsea
Finally free of the target-man shackles, we're now starting to see Eden Hazard in this game. He runs at the home defence, gets it on to his left foot but it's well over the top.
Arsenal 2-0 Chelsea
Seventy-four minutes gone, no Chelsea shots on target.
#bbcfootball or text 81111 (UK only)
You've got to feel for Bellerin, to come back from injury with a great performance and then this. Hopefully it's not too serious.
Fred, Devon
Arsenal 2-0 Chelsea
Let's hope that Bellerin injury isn't as bad as it looks.
Arsenal 2-0 Chelsea
Hector Bellerin looks in a lot of trouble. His knee appears to give way with no-one around him. The stretcher has been called for. A sight no-one ever wants to see.
Bellerin is carried off and Mohamed Elneny comes on.
Arsenal 2-0 Chelsea
Three changes, two for Arsenal, one for Chelsea.
For the hosts, Alex Iwobi and Ainsley Maitland-Niles come on for the impressive duo of Aaron Ramsey and Alexandre Lacazette. For Chelsea, Olivier Giroud is on for Willian.
Arsenal 2-0 Chelsea
Once again today, Laurent Koscielny, who has been excellent throughout, takes Ross Barkley's powerful shot. Ouch, is all we need to say about that one.
Arsenal 2-0 Chelsea
Arsenal attack and Hector Bellerin, collecting the ball in an offside position, has two team-mates up in support with Lacazette waiting for a tap-in. But the right-back can only find the only defender back, Antonio Rudiger. Wasteful.
Arsenal 2-0 Chelsea
Kolasinac gets to the byeline and cuts it back, but Chelsea have bodies back in numbers and the chance evaporates.
#bbcfootball or text 81111 (UK only)
As an Arsenal fan, I'm terrified Chelsea will bring Giroud on. It's exactly the substitution I would have been screaming for two years ago... I know what he can do!
Chris, Woking
Arsenal 2-0 Chelsea
A change for Chelsea, but not the one you and I have been calling for. Instead, Ross Barkley gets the shout and he is on for Mateo Kovacic.
Olivier Giroud still waits to get on against his old team.
Arsenal 2-0 Chelsea
Marcos Alonso shoots wastefully wide. Chelsea need a Plan B. Quickly.