Chesterfield have endured a tough time in recent encounters with their Posh rivals.
Peterborough United have come out on top in six of the last eight meetings of the clubs.
The most famous of those was probably the Johnstone Paints Trophy final at Wembley in 2014, when the Posh won 3-1.
That game had plenty of action and controversy, including a sending off for violent conduct and a debateable penalty.
An Eoin Doyle double and Armand Gnanduillet’s goal gave Town a 3-2 victory.
There was more controversy when the sides met in February of this year at the Proact, Posh having two sent off but still winning 1-0.
In March 2015 Chesterfield dominated proceedings but lost to a Michael Bostwick goal.
And going a bit further back, Peteborough fans will remember this one well, clinching promotion at Saltergate in 1991.