Done and dusted. That's West Ham's first win of the season.
High, wide and handsome. Watford's Etienne Capoue fires another shot wide.
Nothing doing for Watford. Andre Gray sees a right footed shot blocked. That's 22 shots on goal for a meagre one goal.
Ben Foster back in action for Watford. This time he deals comfortably with Pablo Fornals left footed shot. The former Villareal man came on a few minutes ago for West Ham.
Danny Wellbeck has had quite a few injury problems, so can't imagine he's pleased to be cleaned out by West Ham's Angelo Ogbonna.
That's a yellow card, no complaints.
And with that Watford boss Javi Gracia has seen enough.
On comes the Hornets record signing Ismaila Sarr and Danny Welbeck for Will Hughes and Gerard Deulofeu.
Is that game over? Nothing Ben Foster can do here as West ham's record signing Sebastien Haller follows up from a corner and acrobatically scores his second of the afternoon from very close range.Copyright: Reuters
Excellent from Ben Foster, who palms away Michail Antonio's header from a precise Felipe Anderson cross.
Close but no cigar for Andre Gray,as the Watford forward heads over from a Gerard Deulofeu cross.
Deulofeu will be key if the hosts are to get back into this.
Isn't it always the way. The side totally in charge but can't convert their chances are punished by the swift counter.
And swift it is as West Ham slice through the Watford defence with ease down the left. Felipe Anderson cool as you like weighs up his options and picks out Sebastien Haller, who fires in his first goal for the Hammers from six yards.
Couldn't miss really.Copyright: Getty Images
Jose Holebas goes in the book for Watford after scything down Michail Antonio.
We're having another 'cooling break'.
If only Watford were more potent in front of goal. This game should be done and dusted by now.
Gerard Deulofeu is the latest player to go close, connecting with a right footed shot from the right side of the box which finds the grateful arms of Hammers keeper Lukasz Fabianski.
Andriy Yarmolenko's race is run. West Ham are bringing Michail Antonio on to replace him.
It's obviously contagious. Gerard Deulofeu sends Andre Gray racing in on the West Ham goal.
He rounds Lukasz Fabianski with ease and then plays the ball invitingly across goal for Will Hughes to tap in. Except he doesn't. Somehow the midfielder skews his shot wide from a yard out.
He'll have nightmares about that.
Now has Andriy Yarmolenko just stirred things to life.
West Ham's Ukrainian winger curls a dipping shot towards the top left corner of the Watford goal which Ben Foster just about clings on to.
After the frenetic opening few minutes to the first half this is positively sedate.
Watford's Craig Dawson absolutely smashes into West Ham's Ryan Fredericks.
Dawson's not a figure you ever want to be clattered by.
Here we go again. It doesn't look like either side have made any changes for the start of the second half.