The media are reporting that Pompey manager Redknapp still sees Duffy as a major part of the club's future plans and is hoping that the young full back can gain vital first team experience from playing in the Championship.
Duffy was a product of the Swansea youth setup, but was snapped up by Portsmouth last season after only a handful of appearances. The youngster has appeared for Portsmouth and made his first team debut coming on as a substitute against Manchester City towards the end of last season.