Felipe Anderson enters the game and replaces Pablo Fornals.
Late West Ham substitution, with Fornals the man coming off and he has been replaced by Felipe Anderson.
90'
There will be a minimum of THREE minutes added time played.
88'
West Ham have everyone back behind the ball at the moment, with Southampton piling on the pressure, but the hosts are doing a good job at the back, not allowing the Saints any space in behind to play into.
84'
Fornals has been pulling all of the strings in the West Ham attacking play today, he has been superb for the Hammers, providing two assists for their goals.
82'
Southampton haven't been able to create anything going forward for a while and West Ham look very comfortable in all areas of the pitch. The pace of the game has dropped a lot, it's not the fast counter-attacking football, like in the first half.
80'
There's just 10 minutes and any additional time left to play here, can Southampton get a goal now and make it a nervy finale at the London Stadium?
78'
R. Snodgrass enters the game and replaces J. Bowen.
Oriol Romeu enters the game and replaces W. Smallbone.
West Ham make their first substitution, with Bowen heading off the pitch and he has been replaced by Snodgrass.
Third and final Southampton substitution, with Smallbone replaced by Romeu.
76'
West Ham seem happy to let Southampton have the ball at the moment, the hosts are sitting deep and just soaking up the pressure.
72'
Wild effort! Bowen does really well down the right wing, skipping past a couple of Saints defenders and opting to shoot at goal himself, however, his shot flies high over the Southampton goal.
Minute
Description
70'
It looks like Southampton have changed to a three man defence now, with Vestergaard coming onto the pitch. Bertrand and Ward-Prowse will push higher up the field to provide more width.
68'
J. Vestergaard enters the game and replaces M. Obafemi.
Another Southampton substitution, with Obafemi the man coming off and he has been replaced by Vestergaard.
67'
The West Ham defence haven't had much to deal with in this second half, with Fabianski largely untested, whilst McCarthy has been kept busy at the other end.
65'
A. Cresswell gets yellow.
Cresswell is booked for a clear foul on Long, just bringing the striker down in order to stop him from getting any further in the final third.
Good strike! West Ham fail to deal with a Saints free-kick into the box and the ball falls to Bertrand on the edge of the area. The left-back drills it towards the bottom right-hand corner of the net. However, it's just lacking the pace to beat Fabianski, who makes a good save.
63'
Ings has hardly touched the ball since coming onto the pitch, he hasn't had any impact on the game yet. Southampton need a goal quickly if they are going to get anything out of this.
56'
That's a goal for each of the West Ham front three now and two assists for Fornals, with David Moyes looking very happy with his side's performance so far.
54'
D. Ings enters the game and replaces S. Boufal.
M. Antonio has scored a goal for West Ham United! Assist by Pablo Fornals.
Southampton make their first substitution of the game, with Boufal coming off and he has been replaced by Ings.
GOOOAAALLL! West Ham make it 3-1! Antonio with the third Hammers goal of the game, to give the hosts some breathing space. It's a lovely lofted ball over the top of Bednarek by Fornals and Antonio outmuscles the Saints man, to slide it into the back of the net.
It's poor defending at the back by Southampton, they were caught napping by Haller, who won the initial ball and played it through to Fornals, who set up Antonio with a superb pass.
52'
The West Ham attacking front three have struggled to get a touch on the ball so far in this second period, with Southampton defending much better.
50'
It's been a sloppy start to the second half by West Ham, with the visitors on top at the moment, as the Hammers struggle to get going.
46'
The second half is under way!
45' +3
HALF-TIME: WEST HAM 2-1 SOUTHAMPTON
45' +1
J. Stephens gets yellow.
The first yellow card of the game is shown to Stephens, for handball on the halfway line.
45'
There will be a minimum of THREE minutes added time played.
42'
McCarthy appealed for a free-kick for the coming together with Haller for the Hammers goal. However, the referee wasn't interested, it was a fair jump by the striker and the keeper didn't have control of the ball in the air.
40'
S. Haller has scored a goal for West Ham United! Assist by M. Antonio.
It appeared to be a straightforward cross into the box from Antonio, but McCarthy failed to deal with it and Haller made him pay.
GOOOAAALLL! West Ham are back ahead, it's 2-1! Haller takes advantage of some sloppy goalkeeping by McCarthy and puts the hosts into the lead. Antonio chips the ball towards the back post and McCarthy comes off his line to gather, but misses and Haller reaches it, bringing it down and the sliding it into the back of the net from just a few yards out.
39'
There's not long left to play until the break now, can either side score again to lead at half-time? West Ham look the more likely out of the two sides at the moment.
35'
Almost! Boufal gets fortunate after Bowen's header is poor and lands straight at his feet in the final third. The winger delivers a superb low cross into the box, but Long just can't quite reach it at the far post and it goes out of play.
33'
This game could go either way at the moment, it's 1-1 so far, with West Ham having the better of the chances in the final third. However, they don't look particularly confident at the back.
31'
M. Obafemi has scored a goal for Southampton! Assist by J. Ward-Prowse.
GOOOAAALLL! Southampton are level, it's 1-1! Lovely counter by the visitors and Ward-Prowse gets forward down the right wing, he chips the ball into the middle of the penalty area and Obafemi lofts it over Fabianski and into the top left-hand corner of the net.
Despite it not being his regular position, Ward-Prowse has played well at right-back so far and got forward to great effect for the goal. His cross picks out Obafemi perfectly in the box, who did the rest with a superb finish.
29'
This is much better from Southampton, they are seeing much more of the ball and are now forcing the Hammers to do the defending and get everyone back behind the ball.
27'
Free-kick to Southampton in a good position, after Hojbjerg is brought down by Haller. Ward-Prowse whips the ball deep into the penalty area, however, it is headed behind and goes out of play for a corner.
23'
Decent effort! Bowen starts out on the right, receives the ball from the back and then runs at the Saints defence, cutting inside onto his favoured left foot. However, his strike is lacking any pace to beat McCarthy, who makes a comfortable save.
21'
Southampton just need to calm things down at the moment, they are struggling to get on the ball and slow the tempo down, with West Ham looking eager to get a second goal.
17'
The Hammers look full of confidence now, they are playing the ball much quicker around the pitch and it's their pace that is causing Southampton problems.
15'
J. Bowen has scored a goal for West Ham United! Assist by Pablo Fornals.
GOOOAAALLL! West Ham lead 1-0 and it's Bowen with his first goal for the Hammers! Fornals played a lovely ball in behind the Saints defence, for Bowen to run onto and he had time and space to chip the ball over McCarthy and into the back of the net.
Fornals picked up the ball on the left, cut inside and spotted the run of Bowen and he plays a lovely pass straight into his path, with the winger doing the rest with a fine finish.
13'
Southampton look the more dangerous side at the moment, they've won a couple of corners and are keeping the ball well in the final third. However, they are yet to test Fabianski in goal.
9'
Armstrong does really well to break forward from midfield, he beats a couple of players and then tries to switch play to Long, but the cross is cut out by Diop. However, his backpass to Fabianski is poor and the keeper just manages to clear in time, with Long quickly closing him down.
7'
Both sides are just feeling their way into the game at the moment, unable to take control of possession and work their opponents.
5'
Long is already trying to get in behind the West Ham defence, with the Saints playing long balls over the top for him to chase onto and stretch the backline.
3'
It looks like Armstrong should be fine to continue here, the winger has just come back onto the pitch after a being down for a couple of minutes.
1'
We're under way!
Hello and welcome to our LIVE match commentary of the Premier League clash between West Ham and Southampton at the London Stadium.
West Ham haven't won a Premier League game since New Year's Day, when they beat Bournemouth 4-0. Since then, they've slipped into the relegation zone, having lost five and drawn two of their next seven league games.
Meanwhile Southampton beat Aston Villa 2-0 last weekend, a result that moved them 10 points above the Hammers in the final relegation spot, which should surely see them safe for another season.
WEST HAM SUBS: Darren Randolph, Fabian Balbuena, Pablo Zabaleta, Felipe Anderson, Manuel Lanzini, Robert Snodgrass, Arthur Masuaku.
WEST HAM (4-2-3-1): Lukasz Fabianski; Jeremy Ngakia, Issa Diop, Angelo Ogbonna, Aaron Cresswell; Declan Rice, Mark Noble; Jarrod Bowen, Pablo Fornals, Michail Antonio; Sebastien Haller.
SOUTHAMPTON SUBS: Angus Gunn, Jannik Vestergaard, Danny Ings, Che Adams, Oriol Romeu, Kyle Walker-Peters, Yan Valery.
SOUTHAMPTON (4-4-2): Alex McCarthy; James Ward-Prowse, Jack Stephens, Jan Bednarek, Ryan Bertrand; Sofiane Boufal, William Smallbone, Pierre-Emile Hojbjerg, Stuart Armstrong; Shane Long, Michael Obafemi.
The teams are out on the pitch and kick-off is just a few minutes away, stay tuned for all of the match action!
West Ham have looked very dangerous on the break and down the wings, they are using their pace to test the Southampton defence, who have been unable to cope with the front three of Bowen, Antonio and Haller so far.
That's all from us today folks, we hope you enjoyed the game!
This victory moves West Ham up to 16th in the table, two points above Aston Villa in 18th and next up for the Hammers is a trip to the Emirates to face Arsenal. Meanwhile Southampton remain 13th and they'll return home to face Newcastle next time out.
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