That means on-loan trio Davide Petrucci (hamstring), Alex Pritchard (ankle) and Scott Wootton, who will miss the remainder of the season with a hamstring injury, and long-term absentee Peter Grant (knee) remain on the sidelines.
However, Posh boss Darren Ferguson does have options should he wish to make any changes to his starting line-up at Elland Road.
The fit-again Kgosi Ntlhe, fellow defenders Craig Alcock and Shaun Brisley, midfielders Joe Newell and Kane Ferdinand and striker Tyrone Barnett were all on the bench for Saturday's goalless home draw with fellow strugglers Ipswich.
Victory in West Yorkshire will see Peterborough climb out of the relegation zone, and Ferguson said: "That is a big incentive for everyone at the football club.
"I am looking forward to it, the players are looking forward it and it should be a cracking game.
"It is a big pitch and we have done well away from home this season with excellent wins at Cardiff, Hull, Blackburn and, of course, the recent win at Millwall.
"It is the business end of the season now and we have the character in the dressing room to be up for the challenge."