Rovers look to be perfect opponents for a Posh side who need a maximum of three points from three matches to seal a return to the Championship.
But, despite losing nine of their last 12 League One games to slip to 13th, Rovers still have a mathematical chance of finishing in a play-off place, although defeat this evening would end those hopes.
Rovers boss Andy Butler, who played for Posh manager Darren Ferguson at Doncaster, is hoping for defiance from his players tonight as they seek to extend an impressive recent record at London Road where they’ve lost just once in their last 10 outings.
Butler told the Doncaster Free Press: “Peterborough are an excellent side and it only takes one player to switch off and you’re in massive trouble
“We know it’s going to be a tough game from the first minute, but we seem to do well against Peterborough so let’s hope we can go there and continue it.
“It’d be nice to keep the play-offs alive for ourselves. We’ll keep fighting and there always has to be motivation to keep fighting.
“Darren Ferguson was one of my better coaches. He actually improved me as a player and I thank him and Strachs (Gavin Strachan, former Rovers and Posh assistant) for everything they did for me while they were here.
“The way him and Strachs went about the finer details and really nailing down what they wanted from different shapes and formations was brilliant.”
Referee at the Weston Homes Stadium tonight is Scott Oldham. He has not issued a red card all season and he’s shown just 58 yellow cards in 30 matches. Oldham did give Sunderland a controversial penalty when they beat Posh at the Stadium of Light in September.