Doncaster Rovers are reported to have agreed a deal to sign Brentford midfielder Harry Forrester, who was eyed by Blues boss Mick McCarthy during 2012/13.
The 22-year-old, who was offered new terms by the Bees, is out of contract at Griffin Park this summer.
Meanwhile, another player believed to be interesting Town, 22-year-old ex-Cheltenham midfielder Marlon Pack, says he’s considering various contract offers: "I hope to make a decision on my future imminently. I have spoken to several clubs and managers and I am weighing up my options.
"I hope to get my future resolved as quickly as possible so that I can get join up for pre-season and get ready for the new season."
Former Portsmouth man Pack has turned down the offer of a new contract at Whaddon Road.