Sunderland have approached Tottenham with offers for four of their players, Sky Sports News understands.
Steed Malbranque, Pascal Chimbonda, Younes Kaboul and Teemu Tainio are the men reportedly wanted by Black Cats boss Roy Keane.
All four of the players figured under Juande Ramos at White Hart Lane, with Malbranque and Chimbonda particularly prominent figures.
However, Ramos has been busy rebuilding his squad since the end of last season and could be ready to let the quartet leave.
The Black Cats, who have been much quieter in the transfer window, have yet to comment on the reports.
However, Keane did reveal earlier on Thursday that he felt this time next week there would be 'plenty of new faces' at the Stadium of Light.