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A late change to the starting lineup for Arsenal after an injury to Tierney in the warmup... Kolasinac comes into the XI in his place.
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West Ham subs: Randolph, Balbuena, Johnson, Anderson, Lanzini, Yarmolenko, Haller.
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West Ham starting XI: Fabianski, Fredericks, Diop, Ogbonna, Cresswell, Rice, Soucek, Bowen, Fornals, Masuaku, Antonio.
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Arsenal subs: Macey, Luiz, Willock, Maitland-Niles, Elneny, Pepe, Nketiah.
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Arsenal starting XI: Leno, Holding, Gabriel, Kolasinac, Bellerin, Ceballos, Xhaka, Saka, Willian, Lacazette, Aubameyang.
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Fact: The Hammers are aiming to win their opening Premier League away match for the first time in five seasons. The last time they achieved that feat in 2015/16, it was at Arsenal.
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Fact: Arsenal have won 10 of their last 11 home matches against West Ham in all competitions.
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Fact: Pierre-Emerick Aubameyang has been directly involved in 15 goals in his last 16 Premier League London derbies, scoring 12 times and adding three assists.
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Hello and welcome to our live coverage of Arsenal vs West Ham from the Emirates Stadium in the English Premier League. Kickoff is at 8pm UK time.
1'
West Ham are setting up with a back three to match up to Arsenal here.
1'
We are underway as West Ham kick us off!
3'
Bowen leads a good attack for West Ham up the right and looks to find Antonio with a cross but Gabriel is well-positioned and heads clear.
4'
Now Antonio tires to take on Gabriel but the defender shows good pace, but Masuaku picks up the loose ball and wins a corner of Bellerin.
5'
A decent opening! West Ham deliver the corner, Rice gets up highest and nods down and Ogbonna has a shot which is straight at Leno.
7'
West Ham are really doing well here and Bowen first nearly gets in after a miscued Gabriel header and then Ceballos gives away a foul.
8'
Rice steps up to strike the dead ball for West Ham but Ceballos blocks the effort away for a corner. Arsenal defend the delivery well though.
12'
Arsenal are now enjoying some possession but West Ham look well organised in this game so far.
14'
Antonio makes a good run up the right on the counter attack for West Ham but his driven cross is deflected harmlessly into the arms of Leno.
15'
West Ham break at speed yet again and Bowen gets into the box and tumbles over wanting a penalty. Replays show that Gabriel barely made contact and the ref had correctly waved away the penalty claims.
19'
Rice makes a driving run for West Ham and finds Antonio, who sets up Masuaku to over hit a deep cross.
21'
Bellerin makes a run up the right for Arsenal and takes on Cresswell but the Hammers' defender makes a clean tackle inside the box as Arsenal continue to struggle for rhythm thus far.
23'
Arsenal finally have a good attack as Lacazette tries to slip Saka through on goal but the offside flag had been raised.
25'
1-0! ARSENAL! Saka slips Aubameyang into space and the captain crosses perfectly for Lacazette to head home!
28'
Now Aubameyang tries to find Saka's forward run but Diop reads the pass well for West Ham and shields the ball out for a corner.
30'
Saka has a decent opening for Arsenal but drives his shot over the bar from a good position. The hosts are now clicking into gear.
31'
Arsenal have had 67% of the possession in this game so far.
33'
Bowen delivers a corner for West Ham from the right but Lacazette does well to head clear at the front post.
36'
Arsenal are now controlling the game better, recycling possession and building up from the back.
40'
Fredericks is booked for West Ham for catching Saka with a late challenge.
40'
It's all Arsenal now as Saka delivers two crosses into the box and West Ham are having to making numerous defensive clearances.
44'
Gabriel looks for a pass over the top for the run of Aubameyang for Arsenal but Diop intercepts well.
45'
The whistle blows for the end of the first half as Antonio levelled for West Ham in the 45th minute after Lacazette's 25th minute opener.
45'
The fourth official has indicated one minute of additional time to be played.
45'
1-1! ANTONIO! West Ham level right before half-time as Soucek finds Bowen on the right, he finds Fredericks on the overlap and his low cross is turned home by Antonio!
46'
Arsenal have the first shot of the second half as Aubameyang runs onto a pass from Ceballos and sets up Saka to strike but Diop blocks well.
46'
The second half is underway.
49'
Arsenal have started this second half very well, moving the ball much faster. Arteta has clearly had a word with his charges.
52'
Arsenal have now had 66% of the ball in this game but have only mustered four attempts at goal.
53'
CHANCE! West Ham should go 2-1 up as Masuaku delivers a perfect cross from the left and Antonio is waiting to pounce but is put off by Gabriel, who does just enough.
58'
West Ham are now coming into the game having weathered the storm. Rice and Bowen are particularly involved and Fredericks wins a corner off Saka on the right.
59'
Bowen delivers a corner but Gabriel heads clear with Leno also looking to claim the delivery. That's solid defending by the Gunners.
60'
Panic ensues in the Arsenal box as Cresswell crosses deep towards Soucek, Bowen mishits a shot and Gabriel shanks the ball clear.
63'
Xhaka wins a freekick for Arsenal to give the side some respite after a good spell of West Ham pressure.
65'
Soucek and Xhaka challenge for a bouncing ball and have a clash of heads. Both players are down and require some treatment.
65'
Arsenal make the first change of the game as the ineffective Willian is taken off for Pepe.
67'
CHANCE! Antonio gets up highest at the back post and heads against the crossbar. Antonio also had a shot after Leno dropped a high ball. West Ham on top here...
68'
Bowen now has a shot for West Ham after Leno's weak punch and when Arsenal counter attack, Pepe runs the ball straight out of play.
72'
West Ham counter well after Saka gives the ball away and Bowen first has a shot blocked then Soucek strikes weakly wide of goal.
73'
Saka gets in-behind for Arsenal and delivers a cross looking for Pepe but Diop recovers excellently to slide in and block the delivery.
77'
Arsenal make their second change as Nketiah replaces Lacazette up front.
79'
Aubameyang swings in two crosses for Arsenal from the left but both are defended well by West Ham.
82'
West Ham make their first change with Yarmolenko coming on to replace Bowen.
84'
West Ham attack up the left and Leno is all at sea trying to deal with a couple of crosses. The German goalkeeper has not been very convincing today.
86'
2-1! ARSENAL! NKETIAH! Saka plays a lovely pass for Ceballos, who squares for Nketiah to tap into an open net. Arsenal 2-1 West Ham, arguably against the run of play.
88'
Rice delivers a deep cross for West Ham but Soucek heads wide under pressure.
89'
Arsenal make their final change as David Luiz replaces Saka to give more height at the back.
89'
Haller replaces Fornals for West Ham as they try to find an equaliser in this game.
90'
FULL TIME as Arsenal win 2-1 thanks to Nketiah's 86th minute winner against the run of play after first half goals from Lacazette and Antonio. Thanks for joining us.
90'
In the final minute, Arsenal break and Pepe has a chance but his shot is blocked and Nketiah wins a corner from the rebound.
90'
West Ham deliver a deep cross, Anderson takes the ball down and sets up Haller with a cut-back but Ceballos gets out to make a good interception and win a freekick.
90'
In the first of four additional minutes, Aubameyang has a strike from 20 yards with great power but straight into the arms of Fabianski.
90'
West Ham make their final change as Felipe Anderson replaces Masuaku.
Arsenal
West Ham United
2
Goal Scorers
1
25'
85'
45'
0
Yellow Cards
0
0
Red Cards
0
11
Squad
11
Leno Bernd
Holding Rob
Gabriel
Tierney Kieran
Bellerin He...
Ceballos Da...
Xhaka Granit
Saka Bukayo
Willian
Aubameyang ...
Lacazette A...
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
Fabianski L...
Fredericks ...
Diop Issa
Ogbonna Angelo
Cresswell A...
Soucek Tomas
Rice Declan
Bowen Jarrod
Fornals Pablo
Masuaku Arthur
Antonio Mic...
7
Reserves
7
Macey Matt
Luiz David
Kolasinac Sead
Maitland-Ni...
Elneny Mohamed
Pepe Nicolas
Nketiah Edward
12
13
14
15
16
17
18
12
13
14
15
16
17
18
Randolph Da...
Balbuena Fa...
Yarmolenko ...
Anderson Fe...
Lanzini Manuel
Haller Seba...
Johnson Ben