Striker Ivan Klasnic (groin) became the latest addition to their injury list when he was forced off at half-time during last week's FA Cup tie against York.
Gretar Steinsson (knee) and Stuart Holden (thigh) are hoping to return but are still rated doubtful by manager Owen Coyle.
Lee Chung-yong is on international duty at the Asian Cup with South Korea while Joey O'Brien, Sean Davis, Ricardo Gardner and Jlloyd Samuel remain on the sidelines.
Source: PA
Source: PA