Southampton boss Mauricio Pochettino regards their clash with Reading as a six-pointer.
The Royals are seven points adrift of safety with just seven matches remaining, although Saints are only four points clear of the drop zone themselves.
"It was one of the most important games that I am going to encounter, even more important than against Chelsea," Pochettino said.
"We're going to find a really fired up team. They are a team that really need the points, really need to win.
"So do we. We really need the points as well, really need to win. I think it is going to be a very aggressive game with both teams having to win."