Sunderland have made an enquiry for Cardiff striker Jay Bothroyd, skysports.com understands.
Black Cats boss Steve Bruce is exploring his options as he looks to bring in a replacement for Darren Bent.
Bothroyd is believed to be among Bruce's targets with the Bluebirds fighting to keep hold of the England international.
Cardiff have offered a new deal to the 28-year-old, who is out of contract at the end of the season, but he has yet to agree terms.
Bluebirds boss Dave Jones is adamant he does not want to lose Bothroyd, but he could have his resolve tested before the transfer window slams shut at the end of the month.
Newcastle are also keen on Bothroyd and are thought to have made an enquiry for the former Arsenal youngster.
However, Sunderland could be in pole position for Bothroyd if they firm up their interest in the player as they have substantial funds to spend following the sale of Bent to Aston Villa.