Pearson has severe bruising after taking a whack on the shin during the first half of last Saturday`s home defeat to Leicester, with the Scot forced off at half-time as a result. Bailey missed the midlands derby altogether with a groin strain he sustained in the draw at Portsmouth the previous weekend.
Jamie Ward will boost the Rams` attacking options following his arrival on loan from Championship rivals Sheffield United, while on-loan defender Daniel Ayala could also make his full debut after his cameo against the Foxes.
Defenders Russell Anderson (calf) and Jake Buxton (groin) remain sidelined but are nearing a return to full training.
Source: PA
