Interim manager Mick Harford has made one change to his side for this afternoon's game against Peterborough United.
Returning to the starting line-up after being on the bench for Tuesday's FA Cup third round replay against Sheffield Wednesday is Alan McCormack, with Elliot Lee missing out through injury.
New signing from Barnsley, George Moncur, starts on the bench, along with fellow January signing on loan from Derby, George Thorne, who will also be in line for a debut should he appear this afternoon.
So the Hatters line up with James Shea in goal, behind a back four of Jack Stacey, Matty Pearson, captain Sonny Bradley and James Justin. McCormack, Pelly-Ruddock Mpanzu, Luke Berry and Andrew Shinnie, with James Collins and Kazenga LuaLua up front.
TOWN: Shea, Stacey, Pearson, Bradley (c), Justin, McCormack, Mpanzu, Berry, Shinnie, Collins, LuaLua. Subs: Potts, Moncur, Thorne, Jarvis, Jones, Sheehan, Isted.
POSH: Chapman, Naismith, Tafazolli, White, Dembele, Cooke, Toney, Lafferty, Maddison, Tomlin, Dempsey. Subs: Woodyard, Godden, Reed, Ward, Cooper, O'Malley (GK), Stevens.
REFEREE: David Coote