Holloway is desperately short of bodies and was able to name only six substitutes on the bench during Tuesday's goalless draw at home to Derby in the Championship.
Striker Daniel Nardiello (hip) and defender Danny Coid (hairline fracture of the tibia) are sidelined for at least two months.
Left-back Stephen Crainey (groin), midfielder Joe Martin (shoulder) and striker Ben Burgess (groin) all missed out in midweek and could remain sidelined.
Holloway may be about to land Paris Saint-Germain striker Yannick Boli on a one-year loan deal after the 21-year-old joined the club on trial.
