Ryan Hall makes his first MK Dons start in place of Daniel Powell as Karl Robinson makes one change to his side.
Hall, who joined the Dons on a short-term deal in February, will start on the right-hand side of an attacking trio in place of Powell who is ill.
Meanwhile, Mark Randall is named among the six substitutes having finalised his move to stadiummk on Friday.
MK Dons: Martin; Baldock, Spence, Kay, Lewington (c); Gleeson, Alli; Hall, Smith, Odelusi; McLeod.
Subs: Burns (GK), Flanagan, Bowditch, Chadwick, Randall, Rasulo.
Peterborough United: Olejnik (GK), Little, Baldwin, Nugent, Alcock, Bostwick, McQuoid, Rowe (c), Ajose, Washington, Assombalonga.
Subs: Day (GK), Brisley, Payne, McCann, Newell, Knight-Percival, Isgrove