There were worries that the former Liverpool man would face a lengthy spell on the sidelines after injuring his knee in the 2-1 defeat to Wolves. But it was just a knock and he is fine to feature against Derby.
Head coach Sean O'Driscoll saw three of his players depart for international duty but is hopeful they will all be available.
Albert Adomah and Lewin Nyatanga were not used by Ghana and Wales and are ready to feature, but he will assess Jamaica midfielder Marvin Elliott ahead of kick off after he travelled to San Jose for his country's clash with Costa Rica.
Striker Ryan Taylor (shoulder) has returned to training but this match comes too soon for the Rotherham man, while O'Driscoll hopes fellow forward Jon Stead (groin) might be back for the last couple of games.
City are currently four points adrift of safety in the npower Championship and rooted to the foot of the table.