1st(1st leg) Shakter Karaganda - KF Skënderbeu 3:0 (1:0)
2nd (2nd leg) KF Skënderbeu - Shakter Karaganda 3:2 (3:1)
1st(1st leg): 30/07/2013 14:00 2nd (2nd leg): 06/08/2013 19:00 Winner: Shakter Karaganda
1st(1st leg) Austria Wien - FH Hafnarfjörður 1:0 (1:0)
2nd (2nd leg) FH Hafnarfjörður - Austria Wien 0:0 (0:0)
1st(1st leg): 30/07/2013 17:00 2nd (2nd leg): 07/08/2013 17:00 Winner: Austria Wien
1st(1st leg) JK Nõmme Kalju - Viktoria Plzeň 0:4 (0:1)
2nd (2nd leg) Viktoria Plzeň - JK Nõmme Kalju 6:2 (2:1)
1st(1st leg): 30/07/2013 17:00 2nd (2nd leg): 07/08/2013 19:15 Winner: Viktoria Plzeň
1st(1st leg) Dinamo Tbilisi - FC Steaua Bucureşti 0:2 (0:0)
2nd (2nd leg) FC Steaua Bucureşti - Dinamo Tbilisi 1:1 (1:0)
1st(1st leg): 30/07/2013 17:00 2nd (2nd leg): 06/08/2013 18:45 Winner: FC Steaua Bucureşti
1st(1st leg) FC Basel - Maccabi Tel Aviv 1:0 (1:0)
2nd (2nd leg) Maccabi Tel Aviv - FC Basel 3:3 (2:3)
1st(1st leg): 30/07/2013 18:00 2nd (2nd leg): 06/08/2013 18:00 Winner: FC Basel
1st(1st leg) FC Nordsjælland - Zenit St. Petersburg 0:1 (0:0)
2nd (2nd leg) Zenit St. Petersburg - FC Nordsjælland 5:0 (1:0)
1st(1st leg): 30/07/2013 18:00 2nd (2nd leg): 07/08/2013 17:00 Winner: Zenit St. Petersburg
1st(1st leg) PAOK Saloniki - Metalist Kharkiv 0:2 (0:1)
2nd (2nd leg) Metalist Kharkiv - PAOK Saloniki 1:1 (0:0)
1st(1st leg): 30/07/2013 19:00 2nd (2nd leg): 07/08/2013 18:00 Winner: Metalist Kharkiv
1st(1st leg) Dinamo Zagreb - FC Sheriff 1:0 (0:0)
2nd (2nd leg) FC Sheriff - Dinamo Zagreb 0:3 (0:2)
1st(1st leg): 30/07/2013 19:45 2nd (2nd leg): 07/08/2013 18:00 Winner: Dinamo Zagreb
1st(1st leg) PSV Eindhoven - SV Zulte Waregem 2:0 (0:0)
2nd (2nd leg) SV Zulte Waregem - PSV Eindhoven 0:3 (0:0)
1st(1st leg): 30/07/2013 19:45 2nd (2nd leg): 07/08/2013 19:45 Winner: PSV Eindhoven
1st(1st leg) Olympique Lyon - Grasshopper Club Zürich 1:0 (0:0)
2nd (2nd leg) Grasshopper Club Zürich - Olympique Lyon 0:1 (0:0)
1st(1st leg): 30/07/2013 20:00 2nd (2nd leg): 06/08/2013 20:00 Winner: Olympique Lyon
1st(1st leg) Molde FK - Legia Warszawa 1:1 (1:0)
2nd (2nd leg) Legia Warszawa - Molde FK 0:0 (0:0)
1st(1st leg): 31/07/2013 18:00 2nd (2nd leg): 07/08/2013 19:45 Winner: Legia Warszawa
1st(1st leg) APOEL Nikosia - NK Maribor 1:1 (1:0)
2nd (2nd leg) NK Maribor - APOEL Nikosia 0:0 (0:0)
1st(1st leg): 31/07/2013 18:00 2nd (2nd leg): 06/08/2013 19:00 Winner: NK Maribor
1st(1st leg) PFC Ludogorets Razgrad - Partizan 2:1 (0:0)
2nd (2nd leg) Partizan - PFC Ludogorets Razgrad 0:1 (0:0)
1st(1st leg): 31/07/2013 18:30 2nd (2nd leg): 06/08/2013 19:45 Winner: PFC Ludogorets Razgrad
1st(1st leg) RB Salzburg - Fenerbahçe 1:1 (0:0)
2nd (2nd leg) Fenerbahçe - RB Salzburg 3:1 (3:1)
1st(1st leg): 31/07/2013 19:30 2nd (2nd leg): 06/08/2013 19:45 Winner: Fenerbahçe
1st(1st leg) Celtic FC - IF Elfsborg 1:0 (0:0)
2nd (2nd leg) IF Elfsborg - Celtic FC 0:0 (0:0)
1st(1st leg): 31/07/2013 19:45 2nd (2nd leg): 07/08/2013 18:45 Winner: Celtic FC