Birmingham City boss Alex McLeish is performing a mini clearout this month.
Neil Danns is set to join Nottingham Forest in a £400,000 deal, while Oldham want to sign on-loan midfielder Neil Kilkenny permanently.
McLeish said: "We need to bring in three players and I will get the backing from the board to do that.
"If we can raise a little bit ourselves, with players who are not likely to figure moving on to other clubs, that will be good."