Although Lee Clark's side have struggled with goals recently, with just two in four games, the manager is likely to stick with Leroy Lita up front with Wade Elliott controlling the play in behind. Stephen Carr remains a long-term absentee.
Nigel Pearson will probably remain reluctant to change his winning side, with Jamie Vardy and David Nugent expected to lead the line once more. Paul Konchesky picked up a knock in the 2-0 win against Bristol City but he is likely to recover to start.
Possible starting lineups
Birmingham: Butland; Hurst, Caldwell, Davies, Robinson; Burke, Spector, Fahey, Redmond; Elliott; Lita
Leicester: Schmeichel; Moore, St. Ledger, Morgan, Konchesky; King, Dyer, Drinkwater, Knockaert; Vardy, Nugent
Sports Mole says: 1-2