Kanu should return to the Portsmouth squad for the trip to Ipswich but Liam Lawrence remains a doubt.
Former Arsenal striker Kanu was absent from Tuesday night's 1-0 win over Crystal Palace after flying home to Nigeria for personal reasons but he is expected back in time for the weekend.
However, Lawrence is struggling to recover from the calf tear which kept him out in midweek.
The winger is using an oxygen chamber every day in a bid to speed up the healing process.
Boss Steve Cotterill will stick with a back four of Ritchie de Laet, Greg Halford, Ricardo Rocha and Hermann Hreidarsson after three successive clean sheets, meaning skipper Aaron Mokoena will have to make do with a place on the bench again.