Former Blues loanee DJ Campbell has rejoined Blackburn Rovers on a two-year contract having been released by QPR at the end of the season.
The 31-year-old, who scored 10 goals in a 17-game spell at Portman Road in the first half of 2012/13, joined Rovers on loan in February after the Ewood Park club had failed to get a permanent deal done before the January transfer window closed.
Blackburn are also expected to complete the signing of centre-half Matt Kilgallon, who held talks with the Blues soon after his release by Sunderland.
Earlier in the summer, Rovers fought off Town to sign former Notts County winger Alan Judge.
Meanwhile, Lee Martin has completed his move to Millwall, signing a one-year deal.