The Blues will be hoping that their Cup success can help them reverse their fortunes in the league following an inconsistent start to the campaign.
Reading have made a solid start to the season and occupy seventh spot, with last weekend's 3-1 win at Derby County putting pressure on the teams above them.
Possible starting lineups
Reading: McCarthy; Gunter, Kelly, Pearce, Morrison, Guthrie, Baird, Obita, McCleary, Robson-Kanu, Pogrebnyak
Birmingham: Randolph; Bartley, Burn, Robinson, Spector, Adeyemi, Elliott, Murphy, Burke, Green, Lingard
Sports Mole says: 2-1