Portsmouth boss Paul Hart says their clash with West Brom is the biggest game of their season.
He said: "Saturday will be the game of the season. Every game we play between now and the end of the season will be.
"I think it's a hard place to be in the lower echelons of this Premier League and if we want to stay in it, every game is going to be a cup final.
"We've got to win some matches, but really I think we have been dealing with one game at the time and so is everybody at the club. So now we are getting our heads around it, and concentrating on West Brom at home. We'll see what we get.
"What I do know is that if they perform as they have been we'll be a very difficult side to beat and to play against. If we make sure we're right, we'll be okay. It's in our hands."