Christie was sorely missed in Sunday’s 2-1 defeat at Leeds as he served a one-game ban after picking up his fifth yellow card of the season.
He is set to come straight back in at right-back while Fabio is pushing for a return at left-back.
Striker Rudy Gestede is building up his fitness after a thigh injury and could make the bench.
Birmingham have doubts over midfielders Craig Gardner and Stephen Gleeson. Gardner missed the 1-0 win over Nottingham Forest on Saturday with a calf injury.
Gleeson came off at half-time with a slight thigh problem which boss Steve Cotterill is concerned he may aggravate.
Maxime Colin, Isaac Vassell, David Stockdale and Carl Jenkinson remain sidelined.