Novak poised to face former club
Lee Novak and Olly Lee are pushing for recalls as Birmingham play host to Huddersfield.
Striker Novak, who swapped the Terriers for Blues last summer, and midfielder Lee were dropped to the bench for Tuesday's narrow 1-0 defeat at Watford in favour of Albert Rusnak and Brian Howard.
Fit-again left-back Mitch Hancox did not make the matchday 18 at Vicarage Road having overcome an ankle injury and is again pushing for involvement.
Jonathan Spector is closing in on his return but this game comes too soon, while fellow long-term absentees Tom Thorpe (ankle), David Murphy, Matt Green and Neal Eardley (all knee) are unavailable.
Huddersfield will be without leading goalscorer James Vaughan as they come up against former boss Lee Clark.
Vaughan, only recently back from a knee injury, limped out of the midweek home defeat to Nottingham Forest due to a calf strain, so Danny Ward and Martin Paterson are vying for a recall alongside Nahki Wells.
Manager Mark Robins has no new injury or suspension worries as his side chase their first league win on the road since early December. Town have lost five of their last six matches.
Skipper Peter Clarke is hoping to make his first appearance since November having returned to the bench in recent weeks following a knee injury.