The striker arrived on the south coast on transfer deadline day from Stoke in a deal which saw skipper Marc Wilson head in the other direction.
Winger Liam Lawrence was also part of the package and will feature once the Football League ratifies his loan switch.
Boss Steve Cotterill is also awaiting clearance over the registrations of striker Kanu and defender Ricardo Rocha.
The return of Kanu, who has been in dispute with the club over a new contract, would soften the blow of Tommy Smith's departure to QPR.
Hermann Hreidarsson (Achilles), Danny Webber, Tom Kilbey (both knee) and Billy Goddard (shin) are still on the casualty list.
