Deeney gave the visitors the lead in the 30th minute, stepping up to score his third goal of the season from the spot after Fabian Balbuena had brought down Roberto Pereyra. West Ham, who drop down to 12th, almost grabbed an equaliser early in the second half when Michail Antonio’s header rebounded off the post and the forward had another golden opportunity in the 85th minute, heading against the crossbar from close range after Ben Foster had denied Robert Snodgrass.
Two years ago when Watford came from 2-0 down to win 4-2, Deeney accused the home side of showboating and a lack of respect after taking an early lead in a bad-tempered game. There was no less aggression in this one. Javi Gracia has instilled a blend of silk and steel in his side which West Ham struggled to cope with.