Seip, on loan from Plymouth, was unable to play against his parent club for the Blades in last week's 4-3 home win, but will give manager Kevin Blackwell a further option in defence.
Otherwise, Blackwell is hoping to name an unchanged starting line-up after enjoying the rare luxury this season of being able to field arguably his strongest side in last week's success over Plymouth.
The Blades boss is hoping defender Toni Kallio returns from midweek international duty with Finland unscathed, but striker Darius Henderson sits out the second of a three-game ban.
Long-term absentees Gary Naysmith and Ryan France (both knee) and Derek Geary (ankle) remain sidelined.
