Cardiff City chairman Peter Ridsdale says the club have had an offer accepted for an unnamed centre-half.
The Bluebirds are in the market to replace Roger Johnson and Darren Purse, who have both left the club, and Ridsdale says talks with the player were due to take place on Monday.
He also confirmed the Championship outfit have discussed Motherwell defender Paul Quinn - but insists the priority is signing a central defender.
The Cardiff chairman told the South Wales Echo: "Our priority right now is a centre-half and we have had an offer accepted.
"We will be talking to the player today. There has been discussion about Paul Quinn, but our first job is to bring in a central defender."