That's all we've got time for. Southampton's 10 men had to work very hard for 36 minutes or so to hang on after Victor Wanyama's red card, but they did exactly that. West Ham will feel they should have done more, but credit to the Saints too - they put in one heck of a shift.
'You want a team willing to spill a little bit of blood'
Southampton 1-0 West Ham
BBC Radio Solent
Former Southampton manager Dave Merrington at St Mary's
"I think Southampton defended ever so well, and Ronald Koeman must be delighted.
"You want a team of players willing to spill a little bit of blood, run that little bit extra. That was Southampton today."
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#bbcfootball
Forster keeps the most clean sheets
Southampton 1-0 West Ham
Five clean sheets are not the only impressive stats that Fraser Forster can boast this season - he has now saved all 14 of the shots he’s faced in the Premier League in 2015-16.
His record goes back to last season too: Forster’s clean sheet percentage is the best of any goalkeeper with 30 or more Premier League appearances (51.4%), with 18 clean sheets from his 35 games.
'Southampton well worth the three points'
Southampton 1-0 West Ham
BBC Radio Solent
Former Southampton manager Dave Merrington at St Mary's
ReutersCopyright: Reuters
"That was a battling, backs-to-the-wall performance from Southampton. They dug in and kept their shape.Â
"When they were forced to defend they dropped right back and kept the play in front of them, to stop West Ham breaking through and creating anything of note. They were well worth the three points."
In-form Forster
Southampton 1-0 West Ham
So that's five clean sheets in five appearances for Southampton goalkeeper Fraser Forster since his return to the team in mid-January after a long-term injury. He made one top-class save tonight, but West Ham did not really work him hard enough.
"We tried everything" - Noble
Southampton 1-0 West Ham
West Ham midfielder Mark Noble:Â "We tried everything - it just didn't drop for us. Another game we could have scored three or four, but it was a great three points for Southampton because they defended really well."
Post update
Southampton 1-0 West Ham
Talk about hard-fought, but Saints are up to seventh thanks to that victory. Two points and one place behind West Ham.
FULL-TIME
Southampton 1-0 West Ham
It's all over. Ten-man Southampton hold out, and are now five games unbeaten. They have won four of them.
Post update
Southampton 1-0 West Ham
The five minutes of injury time have been played.
Post update
Southampton 1-0 West Ham
West Ham have sent James Collins  forward, and he appeals for a penalty when the ball hits Jose Fonte in the area. Nothing given, and time is running out.
INJURY TIME
Southampton 1-0 West Ham
There will be five minutes of injury time at St Mary's.
Post update
Southampton 1-0 West Ham
Saints are still working hard to keep West Ham out but they almost shoot themselves in the foot when Cedric's attempted clearance flies just past his own goal.
Post update
Southampton 1-0 West Ham
A chance for Saints to seal it, and it falls for Charlie Austin  ... but he shoots wide. Hope for West Ham
ReutersCopyright: Reuters
Post update
Southampton 1-0 West Ham
I think it is fair to say that West Ham are getting desperate. Enner Valencia lets fly from the edge of the area but his shot sails a mile off target. Ten-man Southampton have got everyone back and there is just no way through.
'Van Dijk is dominating Carroll'
Southampton 1-0 West Ham
BBC Radio Solent
Former Southampton manager Dave Merrington at St Mary's
"Virgil van Dijk is dominating Andy Carroll. And that's only a good thing for Southampton, because West Ham keep trying to float the ball up to their big striker."
YELLOW CARD
Southampton 1-0 West Ham
Southampton's Jordy Clasie is booked for kicking the ball away at a free-kick to use up a few more seconds. Every second counts now for Saints as they hang on to this lead.
Post update
Southampton 1-0 West Ham
Lots of crosses from West Ham, but even Andy Carroll cannot do anything with them - they are high and not particularly accurate. Easy for Saints.
ReutersCopyright: Reuters
Post update
Southampton 1-0 West Ham
West Ham just keep on coming. This time Enner Valencia finds space for a shot on the edge of the box but it ricochets off a defender and spins towards Fraser Forster rather than Andy Carroll. Saints survive again.
Live Reporting
Chris Bevan
All times stated are UK
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ReutersCopyright: Reuters 

ReutersCopyright: Reuters
Latest PostPost update
Southampton 1-0 West Ham
That's all we've got time for. Southampton's 10 men had to work very hard for 36 minutes or so to hang on after Victor Wanyama's red card, but they did exactly that. West Ham will feel they should have done more, but credit to the Saints too - they put in one heck of a shift.
'You want a team willing to spill a little bit of blood'
Southampton 1-0 West Ham
BBC Radio Solent
Former Southampton manager Dave Merrington at St Mary's
"I think Southampton defended ever so well, and Ronald Koeman must be delighted.
"You want a team of players willing to spill a little bit of blood, run that little bit extra. That was Southampton today."
Get involved
#bbcfootball
Forster keeps the most clean sheets
Southampton 1-0 West Ham
Five clean sheets are not the only impressive stats that Fraser Forster can boast this season - he has now saved all 14 of the shots he’s faced in the Premier League in 2015-16.
His record goes back to last season too: Forster’s clean sheet percentage is the best of any goalkeeper with 30 or more Premier League appearances (51.4%), with 18 clean sheets from his 35 games.
'Southampton well worth the three points'
Southampton 1-0 West Ham
BBC Radio Solent
Former Southampton manager Dave Merrington at St Mary's
"That was a battling, backs-to-the-wall performance from Southampton. They dug in and kept their shape.Â
"When they were forced to defend they dropped right back and kept the play in front of them, to stop West Ham breaking through and creating anything of note. They were well worth the three points."
In-form Forster
Southampton 1-0 West Ham
So that's five clean sheets in five appearances for Southampton goalkeeper Fraser Forster since his return to the team in mid-January after a long-term injury. He made one top-class save tonight, but West Ham did not really work him hard enough.
"We tried everything" - Noble
Southampton 1-0 West Ham
West Ham midfielder Mark Noble:Â "We tried everything - it just didn't drop for us. Another game we could have scored three or four, but it was a great three points for Southampton because they defended really well."
Post update
Southampton 1-0 West Ham
Talk about hard-fought, but Saints are up to seventh thanks to that victory. Two points and one place behind West Ham.
FULL-TIME
Southampton 1-0 West Ham
It's all over. Ten-man Southampton hold out, and are now five games unbeaten. They have won four of them.
Post update
Southampton 1-0 West Ham
The five minutes of injury time have been played.
Post update
Southampton 1-0 West Ham
West Ham have sent James Collins  forward, and he appeals for a penalty when the ball hits Jose Fonte in the area. Nothing given, and time is running out.
INJURY TIME
Southampton 1-0 West Ham
There will be five minutes of injury time at St Mary's.
Post update
Southampton 1-0 West Ham
Saints are still working hard to keep West Ham out but they almost shoot themselves in the foot when Cedric's attempted clearance flies just past his own goal.
Post update
Southampton 1-0 West Ham
A chance for Saints to seal it, and it falls for Charlie Austin  ... but he shoots wide. Hope for West Ham
Post update
Southampton 1-0 West Ham
I think it is fair to say that West Ham are getting desperate. Enner Valencia lets fly from the edge of the area but his shot sails a mile off target. Ten-man Southampton have got everyone back and there is just no way through.
'Van Dijk is dominating Carroll'
Southampton 1-0 West Ham
BBC Radio Solent
Former Southampton manager Dave Merrington at St Mary's
"Virgil van Dijk is dominating Andy Carroll. And that's only a good thing for Southampton, because West Ham keep trying to float the ball up to their big striker."
YELLOW CARD
Southampton 1-0 West Ham
Southampton's Jordy Clasie is booked for kicking the ball away at a free-kick to use up a few more seconds. Every second counts now for Saints as they hang on to this lead.
Post update
Southampton 1-0 West Ham
Lots of crosses from West Ham, but even Andy Carroll cannot do anything with them - they are high and not particularly accurate. Easy for Saints.
Post update
Southampton 1-0 West Ham
West Ham just keep on coming. This time Enner Valencia finds space for a shot on the edge of the box but it ricochets off a defender and spins towards Fraser Forster rather than Andy Carroll. Saints survive again.
Get involved
#bbcfootball