Skysports.com understands that Birmingham are interested in landing Swiss international Ludovic Magnin.
The Stuttgart left-back is out of contract in the summer and a host of clubs are tracking him.
Magnin's hopes of a move in the near future looked to have been dashed last month when he seemed to have suffered a serious ankle injury.
However, those fears have been banished as Magnin is now approaching full fitness and is currently in the United Arab Emirates competing in the Dubai Cup.
Stuttgart are likely to accept a fee for the 28-year-old rather than losing him for nothing in the summer.
Alex McLeish is desperate to bolster his St Andrews squad and Magnin is high on his list of targets.
Birmingham may have to move quick as there is rival interest from England and France.