Leicester City travel to the ABAX Stadium having progressed from six of their last seven fourth-round ties against lower league opposition in the FA Cup.
Meanwhile League One Peterborough have only lost one of their last 14 games in the competition.
It has been five years since the two sides met, when now Posh boss Grant McCann scored in the 88th minute in a 2-1 defeat for Leicester.
So how do the two sides line up? Scroll down for the confirmed team news:
Bond, Shephard, Tafazolli, Taylor, Hughes, Da Silva Lopes, Grant, Forrester, Maddison, Marriott, Lloyd-McGoldrick
Substitutes
Baldwin, Morias, Penny, Kanu, Doughty, O'Malley, Borg
Hamer, Simpson, Maguire, Benalouane, Fuchs, Silva, Iborra, Diabaté, Gray, Barnes, Iheanacho.