Derby are not mathematically safe, but are fairly comfortable in mid-table although they have just one point from their last three matches in the league.
Peterborough have risen from almost-certain relegation and are now out of the bottom three on goal difference with their run of 10 without defeat.
Possible starting lineups
Derby: Fielding; Brayford, Buxton, Keogh, Forsyth; Davies, Coutts, Hendrick, Freeman; Martin, Bennett
Peterborough: Olejnik; Brisley, Zakuani, Knight-Percival; Alcock, Ferdinand, McCann, Swanson, Rowe; Tomlin, Gayle
Sports Mole says: 0-2