NK Celje is a Slovenian football club based in Celje, founded in 1919, with a stadium capacity of 13,059 seats.
NK Celje achieved their best performance in European competitions in the 2020-2021 season when they reached the third qualifying round of the UEFA Europa Conference League.
Jagiellonia Białystok is a Polish football club based in Białystok, founded in 1920, with a stadium capacity of 22,386 seats.
Jagiellonia Białystok's most successful European campaign was in the 2017-2018 season when they reached the third qualifying round of the UEFA Europa League.
NK Celje and Jagiellonia faced each other in the second qualifying round of the Europa Conference League in the 2021-2022 season, with Jagiellonia advancing to the next round after a 4-1 aggregate victory.
Both clubs have a strong focus on developing young talent and have successful youth academies that have produced players who have gone on to play at higher levels in European football.