Leeds' on-loan defender Andy O'Brien is a major doubt for the clash with leaders QPR.
Neill Collins stepped in alongside Alex Bruce in central defence for last week's win at Burnley following O'Brien's late withdrawal due to a thigh strain and will retain his place if the Bolton centre-half fails to make it.
Manager Simon Grayson is not expected to make many changes as his side look to stretch their unbeaten run to nine matches and close the gap on Rangers to three points.
Defender Paul Connolly returned to the side last week following suspension and is expected to retain his place, as is midfielder Bradley Johnson, recently placed on the transfer list after failing to agree a new contract.
Strikers Billy Paynter, Ross McCormack and Davide Somma are all expected to start on the bench again, with midfielder Jonny Howson playing in advanced role behind 12-goal Luciano Becchio.