That's it for this live text - you can read the match report as it builds here.
And reaction to all of today's games and the build-up to Watford v West Ham is here.
It's another damaging defeat for Bournemouth - their fourth Premier League loss in a row and they are well and truly in the relegation mire now.
They looked great on the ball at times but met a resolute West Brom defence and an inspired Ben Foster at the death.
That's not the main story though - the Cherries' defending let them down badly again and they need to find a way to solve that problem quickly or the drop beckons.
West Brom hold on and reach 40 points.
Another stunning save from Ben Foster!
This time from Tyrone Mings, whose header looks destined for the top corner, only to be clawed out by Foster.
Brilliant stuff from the Baggies keeper, saving his side two points.
Brilliant from Ben Foster to deny Lys Mousset's stinging drive, leaping high to to deny the replacement.
Finally a good save from Artur Boruc to deny James McClean from close range and keep Bournemouth in the game.
Five minutes of added time here, mainly due to Dawson's head injury.
Final throws for Bournemouth.
Nearly a clincher for West Brom as James McClean's cross narrowly evades Rondon's attempted toe poke.
Not long now for the Baggies to hold out. Bournemouth increasingly desperate.
18-year-old Sam Field is on for Nacer Chadli, who has run himself ragged today.
Charlie Daniels gets in down the left, but his cross is behind Ryan Fraser.
This is all going down very well for West Brom.
Eek, Bournemouth have to push up but that leaves gaps in behind as Nacer Chadli races through, but the Cherries do enough to allow Boruc to clear.
Lys Mousset is on for Marc Pugh as Eddie Howe rolls his final die.
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Time is ebbing away horribly for Bournemouth here as Tony Pulis looks to shut up shop in his expert way.
The Baggies giving nothing away right now.
Claudio Yacob is in for James Morrison. Should give the Baggies even more protection in front of the back four.
...Adam Smith rolls it to Steve Cook but his strike hits the wall. Poor.
Another bright run from Ryan Fraser sees him blocked off by James McClean, the sub picking up a booking.
Free-kick in a good spot for Bournemouth...
...ARTUR BORUC CATCHES A CORNER.
Cue ironic cheers from the travelling Bournemouth fans.
Another West Brom corner. Another Boruc flap. That leads to another West Brom corner...
West Brom flirt with danger as a Jake Livermore back-pass forces keeper Ben Foster to take a few too many touches, but he does well to keep it away from a lurking Benik Afobe.
Nice Cruyff turn actually from Foster. Well, Cruyff-ish.
Here is that double substitution as Benik Afobe comes on for Harry Arter and Dan Gosling replaces Jack Wilshere.
Joshua King moves back into the hole, with Afobe up top. Twist time for Eddie Howe.
Nice approach play from Bournemouth but West Brom are back and set, forcing Harry Arter to strike from distance - his effort sliding wide.
Space again for Rondon but the Baggies striker puts in a rare poor touch to allow Bournemouth to mop up.
The Cherries again dominating possession but no way through so far..a couple of changes coming up from Eddie Howe...
Looks likely that the linesman didn't see Chadli's touch for the disallowed goal but Clattenburg did.
The referee then went over and appeared to ask if Chadli would've been offside, had he touched it, and when the linesman confirmed he would've been, the goal was chalked off.
Ryan Fraser has been Bournemouth's best player today as he carves West Brom open down the right and puts in a brilliant cross that just evades two Cherries attackers at the back post.
Nyom shifts to right-back, Brunt to left-back as James McClean comes on for the stricken Dawson.
So West Brom again petrify Bournemouth from the corner, winning the second ball and finding Gareth McAuely, whose looping header bemuses Boruc and hits the top of the crossbar.
West Brom collect it as Brunt crosses in from the right, Craig Dawson gets his head on it - and is clattered by Tyrone Mings for his troubles - as Nacer Chadli gets the last touch in.
But Chadli was offside from Dawson's flick on, with Mark Clattenburg finally deciding in the Cherries' favour after consultation with the linesman.
Dawson then received a few minutes of treatment and is rightly taken off - he was out cold on the floor.
A very, very, very lucky escape for Bournemouth...
Quite a bit happened there...details to follow...
Up the other end, Rondon makes another good run into the channels, forcing Tyrone Mings to cover and concede a corner...
First booking of the game as Nyom clatters Ryan Fraser, who's teased and tested the left-back all afternoon.
Early opening for West Brom but Steve Cook sticks out a foot to block the ball as Nacer Chadli threatened to run through.
High-risk defending yet again...
We're back underway...
Just seeing some replays of West Brom's second and Boruc's calamity.
It gets worse with every viewing.
I have no clue why he tried to punch it clear like that - he goes with his left-hand, well away from his body and gets such a poor contact the ball spins backwards and rolls down his back straight into McAuley's path.
Bournemouth started well - Joshua King's penalty reward for their early pressure on the hosts but then a familiar tale of defensive disaster followed...
First, Craig Dawson was allowed far too much time and space to shoot - although the Cherries can count themselves unlucky his strike took such a big deflection off Charlie Daniels.
West Brom's second was an abysmal goal to concede though with Artur Boruc attempting to punch a ball right on top of him instead of catching it, then losing track of where it fell as Gareth McAuley fired into an empty net.
Testing times for Eddie Howe, he'll need to find a way of changing things round - Bournemouth look like scoring again, but you'd bet your house they'll concede again as it stands.
Whew. Belting half that.
...more jitters from Artur Boruc as Jonny Evans gets free. The Cherries keeper parries at first but desperately clutches on at the second attempt.
A late corner for West Brom, their fourth of the half...can the Cherries hold out?
Two minutes of stoppage time...
Both sides seem to be settling for the status quo at half-time here but I wouldn't rule out more late drama given how we started this half.
More nice passing from Bournemouth sets up Ryan Fraser on the right to curl in a cross that just evades the head of Marc Pugh thanks to a touch away from Gareth McAuley.
Any connection from Pugh would've seen Bournemouth level.