The Reds are poised to sign on loan defender Matt Hill on a permanent basis, Sky Sports understands.
The 29-year-old has made six appearances whilst on loan from Wolverhampton Wanderers and netted his first goal in seven years in the 2-2 draw with Nottingham Forest on New Years Day.
His impressive displays at left-back have prompted Robins to offer a deal until the end of the season. Jay McEveley, the other left-back for the Reds is out with a serious knee injury picked up in October's defeat at Burnley.