Elegant cross from the left by Saka. Lacazette darts in to meet it but glances his header wide from seven yards.
90+3'
SAVE! Aubameyang cuts in from the left and curls a shot towards the bottom-right corner from the edge of the box, but McCarthy gets down and holds on comfortably.
87'
Goal!
Southampton 0, Arsenal 2.
Joseph Willock right footed shot from very close range to the bottom right corner following a set piece situation.
85'
Red Card to Jan Bednarek
80'
Substitutions: Lacazette and Maitland-Niles on, Nketiah and Ceballos off.
76'
Southampton are pushing forward to try and level the game in the closing stages, but they've worked hard in the heat and appear to be running out of energy.
70'
Sead Kolasinac replaces Kieran Tierney.
64'
Substitution: Willock on, Pepe off
60'
Martinez deals well with a cross to the back post and tries to get Arsenal on the front foot with a quick counter, but the ball goes astray and Nketiah fouls Hojbjerg in an attempt to win the ball back.
56'
Saka is a delight. He leads a flowing Arsenal counter-attack which looks like yielding a goal until the backtracking Ward-Prowse makes a vital block.
54'
Corner, Arsenal. Conceded by Jan Bednarek.
53'
Southampton have started this half - as they did the first - on the front foot, playing with intensity and purpose.
47'
Bukayo Saka is shown the yellow card for a foul.
46'
Second Half begins
H-T'
Half-time: Southampton 0-1 Arsenal
45' + 1'
Nketiah charges McCarthy down again, but this time the goalkeeper just gets his pass away and the striker is penalised as his momentum carries him into the Saints stopper.
44'
Corner, Southampton. Conceded by Bukayo Saka.
41'
Good tackle by Bellerin to tip the ball away from Bertrand after Southampton mounted a decent attack, with Armstrong and Obafemi instrumental in it.
36'
Bukayo Saka wins a free kick on the left wing.
33'
Alex McCarthy tries a through ball, but Michael Obafemi is caught offside.
28'
CHANCE!
Ings plucks what had appeared to be an overhit pass out of the air and lays Bertrand off on the left side of the box. The left-back whips a low ball across the face of goal but Armstrong arrives just too late to turn it home from close range!
20'
Goal! Southampton 0, Arsenal 1. Eddie Nketiah left footed shot from very close range.
15'
Saka is down holding his ankle after a collision with Hojbjerg in the box. Another injury is the last thing Arsenal need.
11'
Yellow Card to Shkodran Mustafi
10'
Pierre-Emerick Aubameyang hits the bar with a right footed shot from the left side of the box. Assisted by Kieran Tierney.
8'
No Goal!!
Xhaka finds the run of Saka in behind on the left and the youngster squares for Nketiah to tuck in at the back post, but the linesman flags for offside! Saka was clearly beyond the last man when Xhaka played his pass.
7'
Foul by Jan Bednarek
3'
Obafemi nearly carves Arsenal open as he sends Armstrong on his way down the right in plenty of space, but Aubameyang is back to cover and wins the ball before clearing.
1'
Whistle blows and Arsenal, in their Bruised Banana away kit, get the game started.
'
Arsenal Starting XI To Face Southampton: Martinez; Bellerin, Tierney, Holding, Mustafi; Ceballos, Pepe, Xhaka, Saka; Aubameyang, Nketiah
Southampton - Lineup
Southampton 0, Arsenal 2.
Joseph Willock right footed shot from very close range to the bottom right corner following a set piece situation.
Ings plucks what had appeared to be an overhit pass out of the air and lays Bertrand off on the left side of the box. The left-back whips a low ball across the face of goal but Armstrong arrives just too late to turn it home from close range!
Xhaka finds the run of Saka in behind on the left and the youngster squares for Nketiah to tuck in at the back post, but the linesman flags for offside! Saka was clearly beyond the last man when Xhaka played his pass.
ARSENAL - Lineup