Liam Ridgewell wants former Aston Villa team-mate Gary Cahill to join him at Birmingham City.
Defender Ridgewell left Villa Park for their bitter rivals in a £2million deal in the summer and has become a key player at St Andrews.
And with Blues boss Alex McLeish having been given permission to speak to the young centre-back, Ridgewell is keen for Cahill to follow in his footsteps.
Cahill recently completed a three-month loan spell with Sheffield United but does not appear to be part of Martin O'Neill's long-term plans.
Ridgewell said: "I'd definitely like to see Gary join us. He's a great footballer. He just wants to play first-team football and I think he deserves that.
"It's good that the gaffer is interested in him and it would be good to link up with Gary again. It would be extra competition for places because it's me and Rafael Schmitz at the moment.
"People make a lot about the move between Villa and Blues but at the end of the day we just want to play football. You just want to play week in and week out."
McLeish said: "I've made contact with Gary's agent. Martin O'Neill has said I can speak to the player.
"I'm still waiting to do that and I will advance that this week. I'll try and talk to Gary and his agent and we will see if we can progress it.
"The bottom line is it's not in their hands or my hands. It is in Martin O'Neill's hands. Martin has indicated a sale would suit him but he also has a few injuries and he has got to look at his squad first and foremost.
"We respect everything Martin does in this instance and we are still looking at other options."