Skysports.com understands QPR are closing in on former player Danny Shittu.
The Championship leaders have joined a host of sides keen to secure the services of the powerful defender, who is available on a free transfer.
Millwall, who the 30-year-old joined on a three-month deal after leaving Bolton in September, are keen to tie him down to a new long-term contract.
But top-flight due Wolves and Blackpool are also thought to be interested, while the defender is also being linked Championship trio Cardiff, Middlesbrough and Burnley.
But it seems former club QPR are winning the race to sign the player as Hoops boss Neil Warnock seeks to guide the Championship leaders into the top flight.
Shittu previously signed for the Hoops in 2002, having already spent time on loan at Loftus Road, and went on to make more than 150 appearances before joining Watford in 2006.
He then moved onto Bolton in 2008 before joining the Lions in October.