Sutra je ždrijeb trećeg pretkola..
Group 1 (seeded teams in bold)
Match 1: Ludogorets Razgrad (BUL) v Vidi (HUN)
Match 2: CFR Cluj (ROU) v Malmö (SWE)
Match 3: BATE Borisov (BLR) v HJK Helsinki (FIN)
Match 4: Shkëndija (MKD) v Sheriff (MDA)
Match 5: Legia Warszawa (POL) v Spartak Trnava (SVK)
Winners match 1: Zrinjski (BIH) v Valletta (MLT)
Winners match 2: FC Santa Coloma (AND) v Valur Reykjavík (ISL)
Winners match 3: Sutjeska (MNE) v Alashkert (ARM)
Winners match 4: F91 Dudelange (LUX) v Drita (KOS)
Winners match 5: Olimpija Ljubljana (SVN) v Crusaders (NIR)
Group 2 (seeded teams in bold)
Match 6: Astana (KAZ) v Midtjylland (DEN)
Match 7: Kukës (ALB) v Qarabag (AZE)
Match 8: Dinamo Zagreb (CRO) v Hapoel Beer-Sheva (ISR)
Match 9: Crvena zvezda (SRB) v Suduva (LTU)
Match 10: Celtic (SCO) v Rosenborg (NOR)
Winners match 6: The New Saints (WAL) v Lincoln Red Imps (GIB)
Winners match 7: Torpedo Kutaisi (GEO) v Víkingur (FRO)
Winners match 8: Spartaks Jurmala (LVA) v La Fiorita (SMR)
Winners match 9: APOEL (CYP) v Flora Tallinn (EST)
Cork City (IRL)
U trećem pretkolu uključuje se i 13 novih ekipa :
Zenit (RUS)
Olympiacos (GRE)
Braga (POR)
Gent (BEL)
Feyenoord (NED)
Rapid Wien (AUT)
Rijeka (CRO)
Zorya Luhansk (UKR)
Istanbul Başakşehir (TUR)
Luzern (SUI)
Sigma Olomouc (CZE)
Brondby (DEN)
U Craiova (ROU)
