The Royals make six changes from the side that beat Newcastle for this afternoon's FA Cup fourth round tie against Sheffield United.
Nicky Shorey, Sean Morrison, Jem Karacan, Hal Robson-Kanu, Noel Hunt and Adam Le Fondre all come in for today's clash against the Blades.
Mikele Leigertwood will skipper the Royals this afternoon against his former club - who make just one from their draw at Notts County last week.
Ryan Flynn makes way for striker Chris Porter. Ex-Royal Dave Kitson is named in the Blades starting XI.
Royals: Federici; Kelly, Shorey, Mariappa, Morrison; Karacan, Leigertwood (c), McCleary, Robson-Kanu; Hunt, Le Fondre.
Subs: Taylor, Cummings, Pearce, Guthrie, Kebe, McAnuff, Church.
Blades: Long; McMahon, Westlake, Higginbotham, Maguire; Doyle (c), McDonald, Murphy, Blackman, Porter, Kitson.
Subs: Coyne, Collins, Ironside, Flynn, Whitehouse, Cresswell, De Girolamo