First round: FC Santa Coloma, Alashkert, FCI Tallinn, TNS, Europa FC, Linfield, Vikingur Gota, Trepça'89, Hibernians, La Fiorita
Second round: RB Salzburgo, Rijeka, Legia Varsovia, APOEL, BATE Borisov, Malmo, Rosenborg, Hapoel Be'er Sheva, Copenhague, Celtic, Qarabag, Partizan, Astana, Ludogorets, Maribor, Zilina, Budapest Honved, Sheriff Tiraspol, FH, Samtredia, IFK Marierhamn, Zrinjski Mostar, Kukesi, Vardar, Dundalk, Spartaks Jurmala, Dudelange, Buducnost Podgorica, Zalgiris Vilnius.
Third round: Niza, Ajax, CSKA Moscú, Dynamo Kiev, Brujas, Istanbul Baçakéhir, Young Boys, Viktoria Plzen, AEK Atenas, FCSB, Viitorul, Olympiacos, Slavia Praga.
play-off: Sevilla, Hoffenheim, Liverpool, Nápoles, Sporting Lisboa.
group stage: Real Madrid, Barcelona, Atlético, Chelsea, Tottenham, Manchester City, Manchester United, Bayern Munich, RB Leipzig, Borussia Dortmund, Juventus, Roma, Benfica, Oporto, Mónaco, PSG, Spartak Moscú, Shakhtar Donetsk, Anderlecht, Feyenoord, Besiktas, Basilea.
The first lottery will be hold on the 19th of June. After knowing the result of the first two rounds, the third round will be played on the 14th of July and the play off final on the 4th of August. Finally, the group stage will be performed on the 24th of august.