The Italian would be heading home after ten years in the United Kingdom.
Tutto Mercato Web are reporting that Serie A side Hellas Verona are keen on signing the 27-year-old on a loan deal until the end of the season, with a view to making the move permanent in the summer of 2016.
Mannone joined Sunderland in 2013 and was initially the club's first-choice goalkeeping option. However, a string of poor performances saw him dropped for Costel Pantilimon and he has not featured for the Sunderland first-team since the 4-1 League Cup defeat against Manchester City in September. His last league outing was in May during a 3-1 loss to Chelsea.
The stopper has played in England since Arsenal signed him from Atalanta in 2005 and has also had spells on loan at Barnsley and, perhaps his most impressive stint, Hull City.
That means joining Verona would be a return to Italy after ten years in the United Kingdom.
Sunderland have England Under-21 international Jordan Pickford waiting in the wings to be the club's second choice and Mannone's time on Wearside appears to be up.