Crystal Palace boss Patrick Vieira has sent his best wishes to Roy Keane amid reports linking the former Manchester United midfielder to the vacant Sunderland job.
Sunderland are reportedly set to hold formal talks with Keane over the managerial vacancy at the Stadium of Light after the Black Cats sacked Lee Johnson at the weekend.
Keane first managed Sunderland, who sit third in League One, between 2006 and 2008, but left the club after his relationship with owner Ellis Short deteriorated.