Manager Micky Adams has told his players to play the game and not the occasion when Northampton visit Vale Park on Saturday.
Vale can virtually assure promotion for the first time in almost two decades with victory against the Cobblers.
A crowd of around 15,000 is expected for the game, with the majority of them hoping it will be a promotion party.
Adams is keen for his men to give the supporters what they want but at the same time he insists it is just as important that they keep their heads and do not get carried away in the moment.
"We all know the enormity of this game," Adams said. "We all know what's at stake. The players have seen the queues for tickets and they know what it means.
"We have a fantastic chance to create a bit of history, and I want to make sure we do. That is the motivation. Not that they should need any motivation, if they can't get up for this one then they never will.
"But at the same time there has to be discipline. We need to stick to the game plan. We have 90 minutes to win the game, we don't have to do it in the first 10 or 20.
"It's going to be a terrific atmosphere, everyone will be revved up. But we need to keep 11 players on the pitch. We don't need anyone doing something stupid."