The hosts go into the game firmly in mid-table but a win could take them as high as eight providing other results fall in their favour.
Birmingham currently lie in 16th place and could be drawn into a relegation battle with a few bad results, but they do have two wins on the spin to build on.
Charlton: Hamer; Evina, Solly. Cort, Morrison, Dervite, Jackson, Pritchard, Wagstaff, Wilson, Fuller
Birmingham: Butland; Caddis, Caldwell, Davies, Robinson; Burke, Gomis, Elliott, Hall; King, Thomas
Sports Mole says: 1-1