Cummings, McAnuff & Sharp start
Cummings replaces the suspended Chris Gunter, whilst Jordan Obita and Hal Robson-Kanu drop to the bench - with Royston Drenthe also amongst the substitutes.
With the hectic Christmas schedule now in full swing, Nigel Adkins has chosen to use his squad depth for the first of back to back home games.
Former Royal Simon Church starts for Charlton.
Reading: Mccarthy, Kelly, Cummings, Pearce, Gorkss, Guthrie, Williams, Mcanuff (C), Mccleary, Pogrebnyak, Sharp
Subs: Federici, Akpan, Obita, Drenthe, Blackman, Robson-Kanu, Le Fondre
Subs: Pope, Hughes, Jackson, Green, Sordell, Pritchard, Wood