Willock is so close to getting it! Kante is caught in possession by Aubameyang inside his own box and the ball falls to Willock, who hammers a powerful effort inches wide of the target on the turn!
76'
Joseph Willock replaces Mesut Özil.
73'
Torreira picks up a yellow card.
70'
Hudson-Odoi replaces Kovacic.
64'
Kovacic now tries his luck with an acrobatic bicycle kick which is even more ambitious than Luiz's earlier. It duly ends up a long way off target too.
60'
There is another injury stoppage here with both Rudiger and Mustafi receiving treatment for head wounds.
59'
Tariq Lamptey replaces Tomori.
55'
Jorginho is shown the yellow card for a bad foul.
53'
Offside, Bukayo Saka tries a through ball, but Alexandre Lacazette is caught offside.
48'
The resulting free kick is only cleared as far as Kante on the edge of the box, but he drags his first-time volley a few yards wide of the target.
47'
David Luiz picks up a yellow card for a clumsy foul on Willian.
46'
Lacazette rolls the ball to Aubameyang and, just like that, Arsenal get the second half started at the Emirates Stadium.
45+2'
Chelsea are showing signs of improvement but Arsenal's defensive shape and work rate is very impressive.
45'
There will be five minutes of added time at the end of this first half.
41'
Chelsea have improved since that change, although the main problem for them so far has been misplaced passes, which is more a case of quality on the ball than the shape they are set up in.
39'
Mesut Özil wins a free kick on the right wing.
34'
Rudiger is the next Chelsea player booked for a bad challenge on Torreira.
34'
Jorginho replaces Emerson.
30'
N'Golo Kanté is shown the yellow card.
30'
Mason Mount is shown the yellow card for a bad foul.
30'
Ainsley Maitland-Niles wins a free kick in the defensive half.
22'
Shkodran Mustafi replaces Calum Chambers.
22'
Chambers limps off without the need for a stretcher – but his game is over. Mustafi replaces the Arsenal defender.
20'
Calum Chambers is in trouble. The Arsenal defender is not going to be able to carry on after landing awkwardly in an innocuous challenge with Abraham.
13'
GOAL! Arsenal 1-0 Chelsea (Aubameyang, 13')
10'
Guendouzi picks up a Yellow Card.
8'
David Luiz powers a free-kick at Kepa from 25 yards!
5'
Early threat from Nelson down the right-hand side and he gets the better of Tomori the first time before winning a corner on the second occasion.
3'
Tomori is over-exuberant in the challenge on Reiss Nelson after the winger latches on to a neat flick by Mesut Özil.
1'
We're underway at Emirates Stadium.
'
Arsenal (4-2-3-1): Leno; Maitland-Niles, Chambers, David Luiz, Saka; Torreira, Guendouzi; Nelson, Özil, Aubameyang; Lacazette
Today it will be the 199th meeting between Arsenal and Chelsea with Arsenal holding the superior record with 77 wins. Chelsea have 64 to their name with 57 draws.
ARSENAL - Lineup
Subs: Martínez, Mustafi, Sokratis, Willock, Smith-Rowe, Pépé, John-Jules
Subs: Caballero, Christensen, Batshuayi, Barkley, Hudson-Odoi, Lamptey, Jorginho
Chelsea - Lineup