West Brom boss Tony Mowbray feels Saturday's game against Sunderland is make or break for his team.
The Baggies are 10 points behind the Wearsiders but could drag them further into the relegation fight with a win at the Hawthorns.
But Mowbray thinks anything other than three points will see West Brom relegated after just one season.
"Five wins out of five would give us 40 points. But first we've got to look to the next match which is Sunderland," Mowbray told Sky Sports News.
"We've got to make sure we beat them because if we don't or we don't beat the next team we'll have run out of games and then we'll have been officially relegated."
Mowbray feels that West Brom must eradicate the defensive lapses that have cost them so dearly this season if they are to take maximum points.
"They'll feel it's a great opportunity for them to take three points but what we've got to do is be right in every department and cut out elementary mistakes.
"Hopefully we can get the points and put on a good performance for the supporters who have backed us all the way this season."