Leigertwood will have to serve the final game of his three-match ban after Tuesday night's clash with Watford was postponed.
Winger Ephraim has an ankle injury and on-loan Birmingham striker Bent is struggling with a hamstring problem, with neither likely to be available.
Rangers are still without long-term knee-injury victims Martin Rowlands and Gavin Mahon.
Rowlands' injury will keep him out for the rest of the season but the club hope fellow midfielder Mahon will be pushing for a return by April.
Young striker Antonio German could be called up to make his full debut.