A number of former Black Cats are set to be released – with a number having already been told they are free to find a new club.
But would there be any you would take back at the Stadium of Light when the season ends? Scroll down and let us know:
5. DANNY SIMPSON
After spending much of last summer in the wilderness, Simpson penned a deal at Huddersfield Town earlier in the season - but he is still yet to earn a longer stay at the second tier side. Photo: Nathan Stirk
6. KAZENGA LUA-LUA
Lua-Lua only spent six months on Sunderland before joining Luton, where he remains today. He could well be on the lookout for a new club in the coming months, though. Photo: Laurence Griffiths
7. STEVEN FLETCHER
The Scottish international has netted 13 times already this term and, while Sheffield Wednesday are keen to extend his stay in South Yorkshire, he’s yet to put pen to paper. Photo: Nigel Roddis
8. JACK COLBACK
Having fallen well down the pecking order at Newcastle United, Colback hasn’t played competitive football in almost a year and looks set for a summer switch. Photo: Alex Livesey