Paul Lambert has made two changes from the side that tasted defeat at Bolton last time out.
Into the side come Lee Williamson and Tom Lawrence with Danny Guthrie dropping to the bench and Adam Henley missing out. Chris Taylor hasn't travelled due to illness.
The hosts also make two changes from their draw with Nottingham Forest on Tuesday as Joe Mason and Scott Malone come in for Fabio Da Silva and Kenwyne Jones.
CARDIFF: Marshall (c), Peltier, Ecuele Manga, Ralls, Mason, Noone, Pilkington, Connolly, Gunnarsson, Malone, Watt.
Subs: Moore (GK), Da Silva, Whittingham, Macheda, Dikgacoi, O'Keefe, Ameobi.
ROVERS: Steele, Marshall, Duffy, Hanley (c), Olsson, Lawrence, Williamson, Akpan, Conway, Koita, Rhodes.
Subs: Raya (GK), Spurr, Kilgallon, Delfouneso, Guthrie, Lenihan, Evans.