Jack Collison accepts West Ham are facing a "massive week" in their battle to stay in the Barclays Premier League.
The Irons remain at the foot of the table following Saturday`s 1-1 draw against fellow strugglers Blackburn which left them four points adrift of safety after Wolves beat West Brom on Sunday.
Avram Grant's men now have just two matches left which they must win and hope other results go their way to avoid a return to the Football League.
First up is a trip to Wigan, who are also in deep trouble just a place and three points above West Ham, before the campaign ends at home to Sunderland.
Collison - who has just returned after more than a year out with a serious knee injury - knows anything other than three points at the DW Stadium and their stay among England's elite clubs will be over.
"It is a massive task, we know that, we are not going to lie. We are where we are," the 22-year-old midfielder told West Ham TV. "We go to Wigan next week and it is a must-win game. We have to take three points. They will be thinking the same, so it is set up to be a cup final. It is a matter of two games and two wins to stay in the Premier League."