Birmingham will be without new signing Scott Hogan for their FA Cup replay with Coventry.
Hogan marked his debut for the club with the opening goal in Saturday’s 2-1 win over Nottingham Forest in the Championship.
However, the 27-year-old is ineligible to face the Sky Blues as he was signed on loan from Aston Villa after the first tie was played.
Birmingham manager Pep Clotet was likely to have made changes to his side regardless with Friday’s game at Bristol City in mind.
Coventry manager Mark Robins is also without a loan signing for the clash between landlord and tenant at St Andrew’s.
Ryan Giles made the switch from Premier League side Wolves on transfer deadline day, despite Robins having said hours earlier he did not expect to make any signings.
The 20-year-old was not registered in time to feature at Bristol Rovers at the weekend and is ruled out against Birmingham due to already featuring in the FA Cup this season while on loan at Shrewsbury.
Forward Amadou Bakayoko could be handed a rare start if Robins decides to make changes, with promotion from League One remaining a priority.