The England winger received a one-match ban from the FA following a gesture he made to Leeds fans earlier this month.
His place in the squad will go to forward Stephen Dobbie, who missed the 3-0 defeat at Brighton a fortnight ago as he is on loan from the Seagulls.
Boss Ian Holloway could also include Aruna Dindane after signing the former Portsmouth striker until the end of the season.
Skipper Mile Jedinak hopes to be available despite having only represented Australia in Sydney on Wednesday.
Joel Ward is close to fitness after a groin injury but Alex Nimely (hamstring), Paddy McCarthy (groin) and Owen Garvan (knee) miss out.
- Sports & Recreation
- Stephen Dobbie
- Aruna Dindane