Skipper Craig Morgan serves a one-match ban for his red card against Coventry on New Year's Day while Claude Davis is in the middle of a three-match suspension.
That means new signing Miles Addison - a loan arrival from Bournemouth - and Kari Arnason will form the centre-back pairing.
Boss Steve Evans has no new injuries but has snapped up striker Tom Hitchcock on a month's loan from QPR, allowed Michael Tidser, David Worrall and Pablo Mills to leave the club and Matt Tubbs to return to Bournemouth at the end of his loan spell.
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- Kari Arnason