Birmingham manager Alex McLeish is set to hold discussions with former Newcastle defender Stephen Carr regarding a potential short-term deal at St Andrews.
The 32-year-old announced his retirement in December last year after failing to find a new club following his summer release from Newcastle.
Carr, who has made 44 appearances for Republic of Ireland, has been on trial with the Championship title-chasing Blues for the last few weeks in an attempt to impress McLeish.
And the Scot has now revealed that Carr - who has also played for Tottenham during his career - could be offered terms, along with former Aston Villa defender Ulises de la Cruz.
"We're still looking at Stephen and Ulises and assessing them. They've been out for a long time and you've just got to be sure," McLeish told Birmingham's official website.
"We'll talk to Stephen tomorrow about the possibility of a short-term deal.
"He is in decent nick and both his and Del la Cruz's figures in the sports science department are of a good standard."