The Hammers claim a deserved victory in the end, despite a resilient performance from the Clarets.
Lightning break from the hosts and Javier Hernandez dinks over Joe Hart to make it safe for the Hammers.Copyright: Reuters
Marko Arnautovic is replaced by Angelo Ogbonna.
West Ham are shutting up shop.
Grady Diangana is replaced by Michail Antonio. A superb afternoon for the youngster.
Chris Wood heads against the bar.
This game has sprung into life!
And another one!
Sloppy defending from Burnley as they allow Marko Arnautoviv's shot to rebound to Felipe Anderson to squeezes it in despite the best efforts of Ben Mee.
Can they hold on this time?Copyright: Reuters
Felipe Anderson hits the post with a lovely curling effort. So close!
There is is.
Johann Berg Gudmundsson hoists a high corner into the box and Chris Wood rises highest to thump a headed into the bottom corner.
Sean Dyche's substitutes have paid dividends.Copyright: Reuters
Robbie Brady and Ashley Barnes have come on in place of Aaron Lennon and Sam Vokes.
Can either of them provide Burnley with some inspiration?Copyright: Reuters
Worth noting James Tarkowski was booked for that challenge on Grady Diangana.
West Ham retake the lead!
Grady Diangana just about gets his pass away before he's clattered by James Tarkwoski, and Felipe Anderson drives into the box, steadies himself, and fires into the far bottom corner.
Marko Arnautovic gets in on the left and looks for Javier Hernandez with a low cross, but Charlie Taylor blocks.
West Ham picking up a bit of momentum now.
Change for West Ham: Pedro Obiang off. Javier Hernandez on.
Bit of a lull in the game here.
Both sides struggling to get going.Copyright: Reuters
Marko Arnuatovic unleashes one from the edge of the box, drawing a fine save from Joe Hart.
The former England keeper has made several important stops this afternoon.
Matthew Lowton breaks away down the right and loks for Matej Vydra - but the ex-Derby man cannot meet the cross.
Positive signs for Burnley.
Marko Arnautovic has not stopped running all afternoon.
This time he nearly gets in behind the Burnley backline, but Ben Mee marshals him out of play.Copyright: Getty Images
Robert Snodgrass drives infield and fires a shot off which draws a good save from Joe Hart.
Burnley have made another slow start.
West Ham are straight onto the front foot - Grady Diangana finds space in the Burnley area and fires a cross in, which Ben Mee clears.
Burnley get us under way for the second half.