Grant Leadbitter, Max Power, Chris Maguire, Conor McLaughlin, Remi Matthews, Callum McFadzean and Josh Scowen will all depart the club when their contracts expire at the end of June.
It means the Black Cats will be looking to make several new signings ahead of the 2021/22 campaign – and there are plenty of players who could be available, possibly in the league above.
In the Championship, most clubs have announced their retained lists, though some are still trying to negotiate with players after offering them new contracts.
Championship newcomers Blackpool received extra time to announce the players who will be leaving the club after they reached and won the League One play-off final against Lincoln.
Here are the players who are set to become free agents this summer- including those who have been offered new deals.
In the Championship, most clubs have announced their retained lists, though some are still trying to negotiate with players after offering them new contracts.
5. Bournemouth
Jack Wilshere, Corey Jordan, Tyler Cordner, Dinesh Gillela, George Hunt, Frank Vincent, Keelan O’Connell, Joe Besant, Brandon Channell, Abdi Mohamed | In Discussions With – Junior Stanislas, Adam Smith | Offered New Contracts – Nathan Moriah-Welsh, Connor Kurran-Browne, Brooklyn Genesini, Ben Greenwood Photo: Naomi Baker
6. Bristol City
Aden Baldwin, Opi Edwards, Vince Harper, Freddie Hinds, Zac Smith, Lochlan Robertson, Bradley Webb, Hakeeb Adelakun, Nathan Baker, Famara Diedhou, Rene Gilmartin, Jack Hunt, Henri Lansbury, Adrian Mariappa, Jamie Paterson, Tommy Rowe, Liam Walsh, Marley Watkins | In Discussions With – Danny Simpson, Andreas Weimann Photo: Nathan Stirk
7. Cardiff
Junior Hoilett, Sol Bamba, Joe Bennett, Joe Day, Jonny Williams, Jack Bodenham, Aaron Bolger, Daniel Griffiths, Roland Idowu, Daniel Martin, Camron McWilliams, Ryan Reynolds, James Waite, Jack Williams, Ben Margetson, Mweembe Chiabi, Jaimie Cogman, Bradley Stewart, Frazer Thomas | Offered Contract to – Sam Bowen Photo: Alex Livesey