Nicolas Pépé tries a through ball, but Martin Ødegaard is caught offside.
89'
GOAL! Arsenal 1-2 Brighton (Odegaard, 89')
88'
FOUL! Lacazette is brought down right on the edge of the penalty area.
Another free-kick in a dangerous position... Third time lucky?
It's now or never for Arsenal...
86'
WIDE! It opens up in front of Lokonga and he goes for goal.
It's a superb strike but the ball just drifts wide of the upright.
78'
Attempt blocked.
Nicolas Pépé left footed shot from the centre of the box is blocked.
76'
Lamptey's coming on now. He replaces Mwepu, who has brilliant today for Brighton.
73'
Cedric floats a cross into the box but there is too much height on it as Sanchez comes off his line to claim the high ball.
71'
FOUL! Bissouma catches the back of Lacazette's heel to hand Arsenal a free-kick in a dangerous position again...
67'
GOAL! Arsenal 0-2 Brighton (Mwepu, 67')
58'
Attempt blocked.
Martin Ødegaard left footed shot from outside the box is blocked.
56'
CORNER!
Cedric whips the ball into the Brighton box, but it nestles straight into the hands of Sanchez.
49'
BLOCK!
A poor strike from Cedric as the ball hits an Arsenal player and goes out for a goal kick.
45'
Second Half begins..
H-T'
Arsenal 0-1 Brighton
45'+5'
NO GOAL!
The lines are up and the goal has been ruled out for offside!
45+2'
VAR Checking: Arsenal Goal
45+2'
GOAL! Arsenal 1-1 Brighton (Martinelli, 45+2')
40'
Pascal Groß is shown the yellow card for a bad foul.
36'
CHANCE!
Xhaka's pass somehow finds its way through to Smith Rowe, and the England forward takes a touch before sending a low shot goalwards.
However, Dunk gets across and makes a crucial sliding block.
31'
Attempt missed.
Gabriel Magalhães with an attempt from the centre of the box misses to the left.
30'
Foul by Yves Bissouma.
Alexandre Lacazette wins a free kick in the attacking half.
27'
GOAL! Arsenal 0-1 Brighton (Trossard, 27')
25'
Attempt missed.
Gabriel Magalhães header from the left side of the six yard box is close, but misses to the left.
Assisted by Bukayo Saka with a cross following a set piece situation.
22'
CHANCE!
Martinelli's cut back looks to be falling kindly for Saka, but Smith Rowe gets in the way, and the chance disappears.
20'
Arsenal 0-0 Brighton
Cucurella's cross is cleared by White but the ball falls kindly for Caicedo.
He looks to get a shot away but under pressure from Lacazette, he takes an air shot and Arsenal clear their lines.
18'
Foul by Danny Welbeck.
Benjamin White wins a free kick in the defensive half.
13'
Attempt missed.
Yves Bissouma right footed shot from outside the box.
10'
Foul by Moisés Caicedo.
Benjamin White wins a free kick in the defensive half.
6'
Foul by Bukayo Saka.
Alexis Mac Allister wins a free kick in the defensive half.
5'
CORNER!
Odegaard swings the ball in to the near post and it just needs a touch from an Arsenal player, but Sanchez gets off his line and manages to punch clear.
3'
It's also a big day for Lokonga in the middle of the park in the absence of Partey.
He also hasn't got Xhaka alongside him because of the Switzerland international playing at left-back.
1'
First Half begins..
'
Arsenal Starting XI To Face Brighton: Ramsdale, Soares, White, Gabriel, Saka, Xhaka, Lokonga, Smith Rowe, Odegaard, Martinelli, Lacazette.
'
Early team news: Arsenal are without two key players today, with Thomas Partey (thigh) and Kieran Tierney (knee) out of action.
ARSENAL - Lineup
Another free-kick in a dangerous position... Third time lucky?
It's now or never for Arsenal...
It's a superb strike but the ball just drifts wide of the upright.
Nicolas Pépé left footed shot from the centre of the box is blocked.
Martin Ødegaard left footed shot from outside the box is blocked.
Cedric whips the ball into the Brighton box, but it nestles straight into the hands of Sanchez.
A poor strike from Cedric as the ball hits an Arsenal player and goes out for a goal kick.
The lines are up and the goal has been ruled out for offside!
Xhaka's pass somehow finds its way through to Smith Rowe, and the England forward takes a touch before sending a low shot goalwards.
However, Dunk gets across and makes a crucial sliding block.
Gabriel Magalhães with an attempt from the centre of the box misses to the left.
Alexandre Lacazette wins a free kick in the attacking half.
Gabriel Magalhães header from the left side of the six yard box is close, but misses to the left.
Assisted by Bukayo Saka with a cross following a set piece situation.
Martinelli's cut back looks to be falling kindly for Saka, but Smith Rowe gets in the way, and the chance disappears.
Cucurella's cross is cleared by White but the ball falls kindly for Caicedo.
He looks to get a shot away but under pressure from Lacazette, he takes an air shot and Arsenal clear their lines.
Benjamin White wins a free kick in the defensive half.
Yves Bissouma right footed shot from outside the box.
Benjamin White wins a free kick in the defensive half.
Alexis Mac Allister wins a free kick in the defensive half.
Odegaard swings the ball in to the near post and it just needs a touch from an Arsenal player, but Sanchez gets off his line and manages to punch clear.
He also hasn't got Xhaka alongside him because of the Switzerland international playing at left-back.
Takehiro Tomiyasu (calf) also remains out.
Brighton F.C. - Lineup