Town are understood to have agreed terms with Middlesbrough regarding the loan of right-back Frazer Richardson.
According to Sky Sports, the Blues and Boro have agreed an initial loan for the 31-year-old, who was close to joining Blackpool on a similar basis until Paul Ince’s sacking by the Tangerines earlier this week.
Rotherham-born Richardson started his career with Leeds where he made 145 starts and 28 sub appearances in nine years, scoring five times.
Having spent two spells on loan at Stoke early in his time at Elland Road, 5ft 11in tall Richardson moved on to Charlton in the summer of 2009.
After a year at the Valley he joined Southampton before signing for Boro at the start of this season. He has made only 11 appearances since his switch, the most recent in November.
Richardson won't be in the squad for Saturday's home game with Reading with the deal likely to go through on Monday.
Town boss Mick McCarthy has been keen to add to his defensive options during the transfer window with his regular back four and Tyrone Mings currently his only options.