West Ham boss David Moyes says they must stay positive after drawing at Brighton.
The result is a setback for their faint Champions League hopes.
Moyes said, "We are frustrated because we're playing really well but we're not getting rewarded for it.
"The players were playing really well, their football's improved. I would like that to show fruition by the goals and the last bit [of moves], but we're not showing that by what we're doing in the final third of the pitch at the moment.
"I've not seen the penalty appeals for handball back but that's the way it went. I've questioned a few of the referee's decisions and we had a few to question again tonight.
"My message to everyone associated with the Club is the same: Keep going.
"We think we've done a lot of good things and we'll try and keep it going.
"We've played well tonight. I'm disappointed just now because I wanted to take three points, and answering the questions isn't easy when I'm so disappointed with us not getting a win.
"We should never have gone a goal down in the first place, but as I said, great credit to the players for coming back."
