Posh entertain Gillingham at London Road on Tuesday evening (7.45pm).
Peterborough United can extend their advantage over the nearest challenges in the race for the play-offs to six points with a victory over Gillingham at London Road on Tuesday evening (7.45pm).
Darren Ferguson's men currently hold a three point advantage ahead of this fixture, which is the club's game in hand.
Ferguson said: 'We know how important this game is. We know that if we are successful it will take the advantage to six points with five fixtures to play. We will certainly respect the opposition though, it will be a tough game because they are a good side.
'We have watched their fixture against Rotherham from the weekend and aside from the opening 20 minutes when Rotherham were on top, they caused the opposition a lot of problems. We drew 2-2 at their place in a game I felt we should have won.
'Peter Taylor has done a very good job there. He is an experienced manager and they have some good players. Chris Whelpdale is currently injured, but I would expect Charlie Lee to be involved,' Ferguson said.
The Posh boss has hinted at changes to his starting line-up as he looks to freshen his team up for the final furlong of the season. 'I spoke to the players on Monday morning and told them I would be making changes and I could be making changes for every game and they understood that. There are players pushing for places and that is why you have a good squad.'
Joe Newell is the only absentee. He serves the final match of his three-match ban. Gillingham striker Danny Kedwell will be out for another two weeks with the knee injury he sustained while coming back from a hernia operation.
Defender Leon Legge (hamstring) could return, while winger Whelpdale and defender Gary Borrowdale are closing in on returns, but unlikely to be fit for this clash.
Supporters are reminded that this is the Wembley Reward fixture, so anyone who attended the JPT final at Wembley can watch the action for just £5. For more information of how you can watch the game for just a fiver, click here