Wolves boss Mick McCarthy says all the pressure is on West Ham United tonight.
West Ham trail Wolves by a point after losing their last four games and are the surprise team in this season's relegation battle.
McCarthy believes all the pressure will be on Gianfranco Zola's side and feels victory would have a real impact on Wolves' survival hopes.
McCarthy said: "It is their home game and they will be expected to beat us.
"In this fixture the pressure is on them.
"You can all do the maths. If we win this it will put a real dent in West Ham and it would certainly put some real daylight between us and Burnley and Hull.
"What would it do to us psychologically? What would it do to the rest of them psychologically?
"If we don't lose it would be a hell of a result for us. It is a huge game but more so for West Ham. But it won't be easy, that's for sure."