Millwall midfielder Richard Chaplow is training with the Blues with a view to joining Mick McCarthy’s squad on loan.
The 30-year-old has fallen out of favour at the Den with the last of his 10 appearances this season having come in Millwall’s 4-0 FA Cup replay defeat at Bradford City a month ago.
According to News at Den, Chaplow will spend the week with the Blues, having been told he will not be offered new terms when his current Lions deal is up at the end of the season and that he is free to find himself a new club.
Chaplow started his career with Burnley before moving on to West Brom in 2005. The Accrington-born midfielder spent time on loan at Southampton while a Baggies player, prior to joining Preston in 2008.
Another spell on loan with the Saints followed in 2010, before he made the switch more permanent in January 2011.
A former England U19, U20 and U21 international, Chaplow moved to Millwall initially on loan in March 2013, signing a two-year deal with the Lions that summer after his Southampton contract was terminated.
Meanwhile, former Blues striker Danny Haynes is on trial with League One Scunthorpe having left Notts County by mutual consent in December. The 27-year-old recently spent time training with Gillingham.