Liverpool have emerged as a competitor for the signing of defender Joel Matip.
Schalke will decide on the future of defender Matip next month, with Sunderland and Jurgen Klopp's Liverpool targeting the Cameroon international.
Meanwhile, Yann M'Vila believes his Sunderland colleagues need to show more hunger and more desire if they are to get anything from the trip to the Etihad Stadium on Boxing Day to take on Manchester City.
M'Vila told the Echo: "But for me, every time we go onto the pitch we have to have the hunger and belief that we can win."
Sunderland are looking to sign a new centre-back and centre-half in the January transfer window.
And in today's Echo we reveal the SIX players Sam Allardyce is tracking and the chances of signing them.
Allardyce is holding his press conference today from 2pm and you can follow it live via our blog.
Chris Young is at the Academy of Light for us.