Last Updated: 30/03/13 4:54pm
And that's it, 3-1 to West Ham. A bad day for West Brom, with Mulumbu seeing red at the very end, but a good day forAndy Carroll, who scored two and looked a real menace all afternoon.
Mulumbu is shown a straight red card in the dying seconds, for volleying tha ball at a West Ham player after a foul.
West Brom would like another 10 minutes with the way they are playing, but it almost certainly too late.
Rosenburg turns on a sixpence in the area, but shoots straight at the keeper - either side, that would have been 3-2. Nervy for West Ham.
George McCartney hobbles off, and the hosts are down to 10 men for the last few minutes - and West Brom have a penalty!
Rosenberg gets away from Collins and shoots just wide with his left foot from an angle inside the box.
Panicky stuff at the back from West Brom, with Foster clearing a hasty backpass from Ridgwell that luckily drops to a striped shirt, but it could have gone anywhere.
That's game over now, surely? McCartney being treated after going down heavily on the edge of his own area.
The ball dropped over the striker's shoulder from a free kick from Collins, and his sweet shot with his right gave Foster no chance. Wonderful finish.
Odemwingie sees his shot blocked by a block from Collins and Reid. The controversial striker has looked like a threat since coming on.
Dorrans looks to pull the trigger, but a Hammers foot gets in and touches the ball away at the last second.
Nice finish from James Collins, who volleys home from a Carroll knock-down - but the flag for offisde had been up for a few seconds.
Nolan is replaced by Taylor - the home skipper did not look too hampered by that broken toe, it has to be said.
The Baggies finally go close, Billy Jones driving into the box before Jaaskelainen smothers his poked effort.
Vaz Te whips in a cross from the right towards Carroll that the striker again tries to control off his chest, but to no avail.
West Ham attack straight away but once again Foster can collect easily from the cross from the right.
Jarvis chips the ball over from the left, but Carroll is blocked by Ridgwell as he tries to bring it down off his chest.
Carroll weaves into the box, but rather than pull the trigger his touch is too heavy and West Brom can clear.
Finally, an attack from West Ham, with Diame teasing Jones near the by-line before a poor cross goes over the bar.
Dorrans elects for the power option with the free kick, but the ball fizzes wide and does not threaten Jaaskelainen.
Collins clips Long just outside the edge of the box, to the left hand side - dangerous position for the Baggies.
Promising from West Brom, Dorrans tries to find overlapping Billy Jones but once again the ball skids away off this slick surface.
Home fans urging their team to attack and kill this game off nice and early, but carroll is on his own at the moment.
Brunt just overhits a pass that Long tries in vain to reach, sliding into the track behind the by-line to the home fans' mirth.
Carroll finds Diame with a nice ball, but Diame's shot is deflected and Foster takes with ease. Carroll is playing very, very well today - England recall, anyone?....
Jaaskelainen punches the corner away a good 30 yards, then Lukaku shoots over from 20 yards out with a shot the keeper would not have got to if on target.
Ridgewell's cross is cut out by Collins, who then gets back into position to head behind for a corner.
The Grippers get in touch to say: "Hammers win this and we are safe. Fantastic half. Making a good West Brom team look poor.
Randy in Canada: "How can AC not be in the plans of England after scoring THE Euro goal and playing like this? If he is healthy and gets good players around him, he is a force. Liverpool will get offers for him this summer - their loss."
Can West Brom hit back after the break? They are 25/1 to win now and 8/1 to salvage a draw, while Romelu Lukaku is the 5/1 favourite to score next. Pop over to www.skybet.com for a quick flutter.
Lukaku fails to keep hold of the ball under pressure from Collins, who has dealt well with the Belgian so far.
Lukaku struggling to get into the game despite the amount of times West Brom are trying to find him.
Jarvis goes down in the box, gets up immediately and puts the ball across to no-one in the six yard box. Jones' challenge had the crowd screaming for a penalty, but Andre Marriner was unmoved.
Jarvis wakes up the Hammers with a decent run down the left, but the West Brom defence cut out the cross.
Dorrans' long range, low shot is spilled by Jaaskelainen but he gets away with it as the ball squirts away.
Better from West Brom as they put West Ham under pressure, but O'Neil takes a blow and needs treatment.
O'Neil then puts in a free kick that Vaz Te tries to scissors-kick goalwards - but the West Brom defence holds firm for now.
Brilliant counter-attack from the Hammers, with Vaz Te biding his time on the right until finding O'Neil, who looped the ball beyond Foster for his first top-flight goal for nearly four years.
A rare West Brom corner drops to Olsson, who does a Cruyeff Turn - almost - to chip the ball over before a scissors kick from Nolan hammers it away.
O'Neil tries to find Jarvis with a raking pass across the field, but it is a touch too long and skids off the slippy surface.
Carroll blots his copybook, giving the ball to Long, who then cuts inside but shoots a long way over from outside the area.
Matt Jarvis wastes a great chance, Carroll nodded a long free kick down and the winger lashed the ball over from five yards out when he should have hit the target.
West Brom try to hit back, but Brunt gives away a free kick against Carroll, who is deep in his own half.
O'Neil whipped in the corner from the near side, and the striker powered an unstoppable header past the flailing Foster from six yards out, a classic centre-forward's goal!
Marvellous save from Jaaskelainen! Lukaku's free kick took a deflection off Reid, sening the Hammers keeper the wrong way, but he flung out his right hand to push the ball onto the base of the post and back into his hands.
Carroll v Olsson will be a key battle, won so far by the striker who is getting to the nod-downs with some ease.
Vaz Te lashes the ball wide from the right side of the box after it had fizzed over from a deflected Nolan shot.
West Brom bundle the ball in....but its disallowed, as McAuley clearly barged the West Ham keeper over at Brunt's corner.
Vaz Te lines up a cross, but his touch is far too heavy and he gives it away. West Brom break, and Dorrans' shot bounces in front of Jaaskelainen, who pushes it behind.
Chris Brunt finds Shane Long just outside the box, and his attempted curler floats just wide as the Baggies hit back before Andy Carroll makes a nuisance of himself, his knock-down just eluding Nolan.
O'Neil's cross from the by-line cuts across the face of goal, but there's no Hammers shirt there to get a touch. Good start from the hosts.
Sam Allardyce takes his place in the dugout to watch his side play the club he made one appearance for, his last-ever as a professional footballer.
Kevin Nolan is playing after recovering enough from a broken toe to be available. The teams are out and we are just seconds from kick-off.
A win for West Brom would equal their best ever Premier League points tally with a few games still to go in a season that has gone very well so far.
So how are Hammers and Baggies fans feeling about this one? Drop me a line at email@example.com, or @TimOscroft on Twitter, and let me know where in the world you are tuning in from.
Peter Odemwingie's Twitter outbursts have earned the ire of manager Steve Clarke, but the controversial striker is on the Baggies bench today.
Those four successive draws between the two clubs followed West Brom's 3-2 win in September 2008, and such is the turnover in players these days that Brunt and Olsson are the only "survivors" in today's starting lineups that started that day, with Brunt bagging the winner in the 83rd minute.
West Ham are being well backed and have consequently been cut to 11/10 with West Brom drifting out to 12/5. However, this fixture has ended as a draw in its last four instalments, a trend which is 12/5 to continue. If you fancy a flutter on today's game, pop over to our friends at www.skybet.com for these and other tempting prices.
Baggies fans will still harbour hopes of a place in Europe for the first time since 1981/82 - is that realistic? Let me know at firstname.lastname@example.org, or if Twitter is your thing, @TimOscroft.
Today is the first game at Upton Park since the confirmation of West Ham's move to the Olympic Stadium, which will happen at the start of the 2016/17 season. Premier League football is essential to that move, and a win for the Hammers today will go a long way to allay relegation fears for this campaign. While their form is not great, they look in better nick than a few of the teams below them.
Garry from Stafford: "I reckon 2-0 to West Brom - we have the stronger team and haven't sacked a manager this season, it's due!"
Two changes for the Baggies from their draw with Stoke - Graeme Dorrans and Shane Long replace James Morrison and Jerome Thomas. What do you think of those lineups? Tweet me @TimOscroft, or email email@example.com.
For the hosts, one change from the side that lost to Chelsea, with skipper Kevin Nolan back from a toe injury at the expense of Jack Collison. Joe Cole is not fit enough despite being thought to be close to a return from a month-long hamstring layoff.
West Ham: Jaaskelainen, Reid, O'Brien, Collins, Demel, Diame, O'Neil, Nolan, Jarvis, Carroll, Vaz Te. Subs: McCartney, Tomkins, C.Cole, Collison, Henderson, Taylor, Chamakh
West Brom: Foster; Jones, McAuley, Olsson, Ridgewell; Dorrans, Yacob, Mulumbu, Brunt; Lukaku, Long. Subs: Myhill (gk); Odemwingie, Fortune, Thomas, Rosenberg, Popov, Tamas.
We'll have the team news for you shortly, but if you have any predictions or thoughts ahead of the match, get in touch by emailing me at firstname.lastname@example.org, or onTwitter @TimOscroft, and let me know where in the world you are tuning in from!