Bournemouth and Sunderland have both been drawn to face Italian giants AC Milan in this year's UEFA Europa League.
Bournemouth, who are playing in Europe for the first time, will open their campaign against Milan at home before a trip to Spanish side Real Sociedad.
Sunderland start against AZ Alkmaar before a trip to the San Siro.
Bournemouth will also play Europa League home games against Viktoria Plzen and Sturm Graz, as well as Israeli outfit Hapoel Beer Sheva. Bournemouth's away dates takes them to Sociedad and Celta Vigo in Spain, Sparta Prague in the Czech Republic and Norwegian outfit Lillestrom.
Sunderland are in European competition for the first time since playing in the 1973-74 Cup Winners' Cup and will also play Milan, although the Black Cats are heading off to the San Siro.
Their other away dates are at Anderlecht, Lech Poznan and Portuguese second-tier club Torreense.
AZ Alkmaar, Dinamo Zagreb, Jagiellonia and Levski Sofia will all visit the Stadium of Light.
New Crystal Palace boss Pierre Sage will return to Lyon to take on his former club in the group stages.
Sage was in charge of Lyon between 2023 and 2025 and the Eagles' other away games are at RB Salzburg in Austria, Polish club Jagiellonia and Besiktas in Turkey.
The Conference League champions will host Real Sociedad, Sparta Prague, Lech Poznan and Hoffenheim at Selhurst Park.
Celtic have dropped down to the Europa League after their Champions League defeat to Austrian side LASK.
Martin O'Neill's side will be at home to Marseille, Ferencvaros, Celta Vigo and Besiktas.
Celtic will visit Benfica, Union Saint-Gilloise, Omonia Nicosia and Torreense.
The dates of the fixtures will be confirmed by UEFA across the weekend.