Dean Saunders is hoping Billy Paynter will be fit for the trip to Bramall Lane after the striker missed the victory over Colchester United with a calf strain.
Goalkeeper Neil Sullivan will be missing for around two weeks after he injured his hand in the warm up last Saturday.
Blades midfielders Michael Doyle and Ryan Flynn will both miss the game as they serve the second of their three-match bans. Danny Wilson has no fresh injuries or suspensions.