It is a historic day on Wearside as the Black Cats begin their first European campaign in 53 years against Eredivisie side AZ Alkmaar.
Head coaches Régis Le Bris and Leeroy Echteld held their pre-match press conferences on Wearside on Tuesday as the two clubs stepped up their preparations from the game, with both offering the latest team news from the respective camps.
Reinildo is available as his one-game suspension for the red card he was shown in the 2-0 Arsenal game only applies for Premier League fixtures, and so will come into force at Manchester City on Sunday. U21 players Timur Tutierov and Tom Proctor both trained with the senior squad on Tuesday, though may not be required for the matchday squad.
Here’s all the latest team news as we have it at this stage...
5. Chemsdine Talbi - unavailable
Talbi has not been registered for this competition as he was in talks over a potential move to Saudi Arabia when the list was submitted and he could not have been replaced had he made the switch. That move did not ultimately proceed but it means he can't feature in the league phase. | Chris Fryatt
6. Melker Ellborg - unavailable
Sunderland's battle to meet their homegrown quote means that Simon Moore has been registered in Ellborg's place. The Swede could come into the squad int he case of a significant injury to another stopper. | Getty Images
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7. Jocelin Ta Bi - unavailable
Sunderland's limited number of spaces due to UEFA's strict homegrown registration rules means the winger has missed out on selection for the league phase. | Getty Images
8. Alan Browne - unavailable
Another player who has not been registered as he does not count as a homegrown player and Sunderland's spaces were limited. | Getty Images