Andy Carroll struck a stoppage-time winner as West Ham came from behind for the first time this season to beat relegation rivals West Brom 2-1 at the London Stadium
Carroll brought a nine-month goal drought to an end in emphatic fashion, cancelling out James McClean's deflected opener (30) on 59 minutes before firing the winner deep into time added on
It was a bitter pill for Alan Pardew to swallow on his return his former employers as the Baggies' winless run in the Premier League stretches to an unenviable 20 games
The result lifts the Hammers up to 16th in the table, five points clear of West Brom in 19th, who remain firmly in the relegation mire
With West Ham without a win in three, and West Brom winless in 19, there was an understandable degree of caution from both sides for the opening quarter of this bottom-of-the-table clash
Salomon Rondon's chipped effort nestled on the roof of the net on 14 minutes and that drew a response from the Hammers as Manuel Lanzini's rasping drive forced Ben Foster into action seven minutes later
The Baggies had a helping hand against Arsenal as a contentious penalty saw them snatch a point, and fortune was on their side once more as McClean's strike, after some pitiful defending from Winston Reid, deflected off Pedro Obiang and over the hapless Adrian
West Brom pushed for a second but going behind galvanised the disjointed Hammers as Lanzini's low 39th-minute effort drew another fine stop from Foster, who bravely thwarted Kouyate from converting Carroll's knock-down four minutes later
Adrian stopped a Jonny Evans toe-poke on the line before the break from which West Ham returned revitalised, Carroll turning Marko Arnautovic's whipped cross over within a minute of the restart
But Carroll was not to be denied as he hauled the Hammers level with a towering header from Aaron Cresswell's cross shortly before the hour - his first goal since April 1
And, after Jake Livermore was involved in an altercation with West Ham supporters following his 64th-minute substitution, Carroll capped his return to form by firing Arnautovic's cross home from a narrow angle at the death
 "You can see how important a win that was
 They were top goals from Andy
 I don't know if there are many centre halves that could have dealt with his leap for the first goal, and I must say the ball in is terrific
 You have to give him great credit for the finish for the second
" "That's a tough one to take, the two-day turnaround cost us in the end
 We just ran out of legs, we couldn't keep going
 To concede in that manner is heart-breaking for the players
 It was difficult for us, they had more energy than us and it showed
"West Ham look to have escaped with a point after an abject display in front of their own supporters but, having already equalised, Carroll provided the perfect finishing touch
The Hammers frontman buried a trademark header to end the longest goal drought of his career and, like London buses, his second soon followed as he fired home from a tight angle to snatch the victory
 "Wow, what a game
 I thought with so much riding on it down the bottom that West Brom away from home might play on the counter-attack and make it an edgy affair, but right from the start both teams were going for it
 West Ham, through Andy Carroll, were calm and clinical at the end then they deserved it
"West Ham make the trip to Wembley on Thursday to take on London rivals Tottenham - live on  - before travelling to Shrewsbury in the FA Cup on Sunday
 In between those games, West Brom head to Devon for their FA Cup third-round clash with Exeter City
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