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| 1st(1st leg) | Glenavon FC | - | Standard Liège | 0:1 (0:0) | ||
| 2nd (2nd leg) | Standard Liège | - | Glenavon FC | 1:0 (0:0) | ||
| 1st(1st leg): 18/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Standard Liège | ||||
| 1st(1st leg) | Lokomotiv Sofia | - | Ferencvárosi TC | 3:0 (1:0) | ||
| 2nd (2nd leg) | Ferencvárosi TC | - | Lokomotiv Sofia | 2:0 (1:0) | ||
| 1st(1st leg): 18/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Lokomotiv Sofia | ||||
| 1st(1st leg) | AC Perugia | - | Dinamo Zagreb | 1:0 (1:0) | ||
| 2nd (2nd leg) | Dinamo Zagreb | - | AC Perugia | 0:0 (0:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: AC Perugia | ||||
| 1st(1st leg) | Inter | - | Real Sociedad | 3:0 (0:0) | ||
| 2nd (2nd leg) | Real Sociedad | - | Inter | 2:0 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Inter | ||||
| 1st(1st leg) | SSC Napoli | - | Olympiakos Piraeus | 2:0 (1:0) | ||
| 2nd (2nd leg) | Olympiakos Piraeus | - | SSC Napoli | 1:0 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 04/10/1979 | Winner: SSC Napoli | ||||
| 1st(1st leg) | VfB Stuttgart | - | Torino FC | 1:0 (0:0) | ||
| 2nd (2nd leg) | Torino FC | - | VfB Stuttgart | 2:1 (0:0, 1:0) aet | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: VfB Stuttgart | ||||
| 1st(1st leg) | Dundee United | - | RSC Anderlecht | 0:0 (0:0) | ||
| 2nd (2nd leg) | RSC Anderlecht | - | Dundee United | 1:1 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 02/10/1979 | Winner: Dundee United | ||||
| 1st(1st leg) | Dinamo Kiev | - | CSKA Sofia | 2:1 (1:1) | ||
| 2nd (2nd leg) | CSKA Sofia | - | Dinamo Kiev | 1:1 (0:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Dinamo Kiev | ||||
| 1st(1st leg) | Kuopion Pallo-Toverit | - | Malmö FF | 1:2 (0:1) | ||
| 2nd (2nd leg) | Malmö FF | - | Kuopion Pallo-Toverit | 2:0 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Malmö FF | ||||
| 1st(1st leg) | Dinamo Bucureşti | - | Alki Larnaca | 3:0 (2:0) | ||
| 2nd (2nd leg) | Alki Larnaca | - | Dinamo Bucureşti | 0:9 (0:3) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 04/10/1979 | Winner: Dinamo Bucureşti | ||||
| 1st(1st leg) | TJ Bohemians ČKD Praha | - | Bayern München | 0:2 (0:1) | ||
| 2nd (2nd leg) | Bayern München | - | TJ Bohemians ČKD Praha | 2:2 (0:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Bayern München | ||||
| 1st(1st leg) | TJ Zbrojovka Brno | - | Esbjerg fB | 6:0 (1:0) | ||
| 2nd (2nd leg) | Esbjerg fB | - | TJ Zbrojovka Brno | 1:1 (0:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: TJ Zbrojovka Brno | ||||
| 1st(1st leg) | Valletta FC | - | Leeds United | 0:4 (0:2) | ||
| 2nd (2nd leg) | Leeds United | - | Valletta FC | 3:0 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Leeds United | ||||
| 1st(1st leg) | Orduspor 1967 | - | TJ Baník Ostrava OKD | 2:0 (1:0) | ||
| 2nd (2nd leg) | TJ Baník Ostrava OKD | - | Orduspor 1967 | 6:0 (3:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: TJ Baník Ostrava OKD | ||||
| 1st(1st leg) | Widzew Łódź | - | AS Saint-Étienne | 2:1 (0:1) | ||
| 2nd (2nd leg) | AS Saint-Étienne | - | Widzew Łódź | 3:0 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: AS Saint-Étienne | ||||
| 1st(1st leg) | Aris Saloniki | - | SL Benfica | 3:1 (2:1) | ||
| 2nd (2nd leg) | SL Benfica | - | Aris Saloniki | 2:1 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Aris Saloniki | ||||
| 1st(1st leg) | FC Carl Zeiss Jena | - | West Bromwich Albion | 2:0 (1:0) | ||
| 2nd (2nd leg) | West Bromwich Albion | - | FC Carl Zeiss Jena | 1:2 (1:1) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: FC Carl Zeiss Jena | ||||
| 1st(1st leg) | Atlético Madrid | - | Dynamo Dresden | 1:2 (0:0) | ||
| 2nd (2nd leg) | Dynamo Dresden | - | Atlético Madrid | 3:0 (2:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Dynamo Dresden | ||||
| 1st(1st leg) | Aarhus GF | - | FKS Stal Mielec | 1:1 (0:0) | ||
| 2nd (2nd leg) | FKS Stal Mielec | - | Aarhus GF | 0:1 (0:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Aarhus GF | ||||
| 1st(1st leg) | Feyenoord | - | Everton FC | 1:0 (1:0) | ||
| 2nd (2nd leg) | Everton FC | - | Feyenoord | 0:1 (0:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Feyenoord | ||||
| 1st(1st leg) | Skeid Fotball | - | Ipswich Town | 1:3 (1:2) | ||
| 2nd (2nd leg) | Ipswich Town | - | Skeid Fotball | 7:0 (4:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Ipswich Town | ||||
| 1st(1st leg) | Sporting Gijón | - | PSV Eindhoven | 0:0 (0:0) | ||
| 2nd (2nd leg) | PSV Eindhoven | - | Sporting Gijón | 1:0 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: PSV Eindhoven | ||||
| 1st(1st leg) | Galatasaray | - | Crvena Zvezda | 0:0 (0:0) | ||
| 2nd (2nd leg) | Crvena Zvezda | - | Galatasaray | 3:1 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 04/10/1979 | Winner: Crvena Zvezda | ||||
| 1st(1st leg) | Aberdeen FC | - | Eintracht Frankfurt | 1:1 (0:1) | ||
| 2nd (2nd leg) | Eintracht Frankfurt | - | Aberdeen FC | 1:0 (0:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Eintracht Frankfurt | ||||
| 1st(1st leg) | Bor. Mönchengladbach | - | Viking FK | 3:0 (2:0) | ||
| 2nd (2nd leg) | Viking FK | - | Bor. Mönchengladbach | 1:1 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Bor. Mönchengladbach | ||||
| 1st(1st leg) | Sporting CP | - | Bohemian FC | 2:0 (1:0) | ||
| 2nd (2nd leg) | Bohemian FC | - | Sporting CP | 0:0 (0:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Sporting CP | ||||
| 1st(1st leg) | FC Zürich | - | 1. FC Kaiserslautern | 1:3 (0:1) | ||
| 2nd (2nd leg) | 1. FC Kaiserslautern | - | FC Zürich | 5:1 (2:1) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: 1. FC Kaiserslautern | ||||
| 1st(1st leg) | Shakhtyor Donetsk | - | AS Monaco | 2:1 (0:0) | ||
| 2nd (2nd leg) | AS Monaco | - | Shakhtyor Donetsk | 2:0 (0:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: AS Monaco | ||||
| 1st(1st leg) | Kalmar FF | - | ÍB Keflavík | 2:1 (2:0) | ||
| 2nd (2nd leg) | ÍB Keflavík | - | Kalmar FF | 1:0 (1:0) | ||
| 1st(1st leg): 19/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: ÍB Keflavík | ||||
| 1st(1st leg) | Rapid Wien | - | Diósgyöri VTK | 0:1 (0:0) | ||
| 2nd (2nd leg) | Diósgyöri VTK | - | Rapid Wien | 3:2 (2:1) | ||
| 1st(1st leg): 19/09/1979 17:00 | 2nd (2nd leg): 03/10/1979 | Winner: Diósgyöri VTK | ||||
| 1st(1st leg) | Wr. Sportclub/Post | - | FC Universitatea Craiova | 0:0 (0:0) | ||
| 2nd (2nd leg) | FC Universitatea Craiova | - | Wr. Sportclub/Post | 3:1 (1:0) | ||
| 1st(1st leg): 19/09/1979 19:00 | 2nd (2nd leg): 03/10/1979 | Winner: FC Universitatea Craiova | ||||
| 1st(1st leg) | Progrès Niedercorn | - | Grasshopper Club Zürich | 0:2 (0:0) | ||
| 2nd (2nd leg) | Grasshopper Club Zürich | - | Progrès Niedercorn | 4:0 (3:0) | ||
| 1st(1st leg): 26/09/1979 | 2nd (2nd leg): 03/10/1979 | Winner: Grasshopper Club Zürich | ||||
