Cardiff and Hull are battling it out for the signature of Fleetwood left back Amari'i Bell.
The defender is attracting significant attention from a number of Championship sides ahead of next week's transfer deadline.
And Cardiff, who have already had an offer rejected, and Hull are understood to be leading the queue for the 23-year-old.
Birmingham are also credited with an interest in Bell, who graduated from their academy, but Cardiff and Hull are keen on rushing through their own moves for the talented full-back.