The striker scored 20 goals in just 48 league games for the Blades a decade ago and has returned for a second spell on loan from Birmingham.
Midfielder Leon Britton will not feature after completing a surprise move back to opponents Swansea but loan signings Joe Mattock and Shane Lowry could make their home debuts.
Defender Matt Lowton and midfielder Lee Williamson have both recovered from groin problems, while striker Richard Cresswell is fit again after a shoulder injury.
Winger Mark Yeates made a surprise return to the bench during last Saturday's goalless draw at Coventry after recently dislocating his shoulder and he could be considered from the start.
Source: PA
Source: PA