Debutant Eric Dier scored a dramatic injury-time winner to get Mauricio Pochettino's era at Tottenham off to a winning start
West Ham live updates
West Ham co-chairman David Sullivan has confirmed the club are in the hunt for at least one new striker having lost Andy Carroll to injury.
– David Sullivan speaking to talkSPORT
We have to bring in another striker and we're working on it now to buy one, or loan one, or both.
You can never have enough strikers and really with Andy gone we haven't got enough. It was desperate last year... We probably made a mistake by putting all our eggs in one basket.
We can't start the season with the strikeforce we've got. I don't think it's good enough, there's not enough height in it and if we get another injury, in terms of quantity, it's insufficient, so we have to sign at least one more player.
West Ham striker Andy Carroll will miss both games of the club's pre-season tour of New Zealand due to an ankle injury.
The 25-year-old missed the first half of last season with a heel problem, and the club are keen to do all they can to make sure he starts the new campaign fully fit.
Diego Poyet has hinted he is on the verge of completing a move to West Ham.
The 19-year-old midfielder, son of Sunderland manager Gus Poyet, is a free agent after his contract at Charlton expired.
Poyet has reportedly also attracted interest from Chelsea, Manchester City and the Black Cats.