The former Watford midfielder has missed the last nine games with a hamstring injury, but is hoping to be included in Malky Mackay's squad to face Posh.
A lengthy injury list, which had deprived Mackay of a number of first-team players in November, has now been all-but cleared, and with an in-form squad, the npower Championship leaders will be looking to continue their perfect home form against Darren Ferguson's men.
Mackay will be without defender Mark Hudson due to suspension however, with Matthew Connolly expected to play alongside Ben Turner in the heart of the defence.
Kevin McNaughton will be Connolly's first-choice replacement at right-back, while midfield playmaker Peter Whittingham is expected to take Hudson's captain's armband.
Jordan Mutch returns after missing the 4-1 victory at Blackburn through suspension, meaning Nicky Maynard, ruled out for the season with a knee injury, is the only long-term absentee.
- Sports & Recreation
- Malky Mackay
- Matthew Connolly