Klasnic scored the winner in the midweek victory over Southampton in the Carling Cup, but was substituted at half-time after suffering a thigh strain.
Winner: Klasnic's goal sent Bolton through in the Carling Cup
Sean Davis, who missed most of last season through injury, is being kept on the sidelines as a precaution for up to two months after feeling some discomfort in his knee.
Provisional squad: Jaaskelainen, Knight, Ricketts, Cahill, Robinson, Muamba, Lee, M Davies, Taylor, Cohen, Petrov, K Davies, Elmander, Klasnic, Blake, Samuel, A O'Brien, Steinsson, Riga, Holden, Shittu, J O'Brien, Alonso, Gardner, Bogdan.
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