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| U | Vitória Setúbal | - | RWD Molenbeek | 1:0 (0:0) | ||
| R | RWD Molenbeek | - | Vitória Setúbal | 2:1 (1:0) | ||
| U: 16.10.1973 23:50 | R: 07.11.1973 20:00 | Winnaars: Vitória Setúbal | ||||
| U | Olympique Marseille | - | 1. FC Köln | 2:0 (0:0) | ||
| R | 1. FC Köln | - | Olympique Marseille | 6:0 (4:0) | ||
| U: 23.10.1973 20:30 | R: 06.11.1973 20:00 | Winnaars: 1. FC Köln | ||||
| U | Dinamo Tbilisi | - | OFK Beograd | 3:0 (2:0) | ||
| R | OFK Beograd | - | Dinamo Tbilisi | 1:5 (0:3) | ||
| U: 24.10.1973 15:00 | R: 07.11.1973 13:30 | Winnaars: Dinamo Tbilisi | ||||
| U | Lokomotiv Plovdiv | - | Budapest Honved SE | 3:4 (2:3) | ||
| R | Budapest Honved SE | - | Lokomotiv Plovdiv | 3:2 (1:0) | ||
| U: 24.10.1973 17:00 | R: 07.11.1973 13:30 | Winnaars: Budapest Honved SE | ||||
| U | 1. FC Lokomotive Leipzig | - | Wolverhampton Wanderers | 3:0 (1:0) | ||
| R | Wolverhampton Wanderers | - | 1. FC Lokomotive Leipzig | 4:1 (0:0) | ||
| U: 24.10.1973 17:00 | R: 07.11.1973 20:30 | Winnaars: 1. FC Lokomotive Leipzig | ||||
| U | Dinamo Kiev | - | B 1903 København | 1:0 (0:0) | ||
| R | B 1903 København | - | Dinamo Kiev | 1:2 (0:0) | ||
| U: 24.10.1973 18:00 | R: 07.11.1973 19:00 | Winnaars: Dinamo Kiev | ||||
| U | Ruch Chorzów | - | FC Carl Zeiss Jena | 3:0 (1:0) | ||
| R | FC Carl Zeiss Jena | - | Ruch Chorzów | 1:0 (0:0) | ||
| U: 24.10.1973 18:00 | R: 07.11.1973 17:00 | Winnaars: Ruch Chorzów | ||||
| U | Admira/Wacker | - | Fortuna Düsseldorf | 2:1 (0:1) | ||
| R | Fortuna Düsseldorf | - | Admira/Wacker | 3:0 (3:0) | ||
| U: 24.10.1973 19:00 | R: 06.11.1973 19:30 | Winnaars: Fortuna Düsseldorf | ||||
| U | VfB Stuttgart | - | TJ Tatran Prešov | 3:1 (0:1) | ||
| R | TJ Tatran Prešov | - | VfB Stuttgart | 3:5 (1:1, 3:1) n.v. | ||
| U: 24.10.1973 19:00 | R: 07.11.1973 13:30 | Winnaars: VfB Stuttgart | ||||
| U | Standard Luik | - | FC Universitatea Craiova | 2:0 (1:0) | ||
| R | FC Universitatea Craiova | - | Standard Luik | 1:1 (1:0) | ||
| U: 24.10.1973 20:00 | R: 07.11.1973 13:15 | Winnaars: Standard Luik | ||||
| U | Aberdeen FC | - | Tottenham Hotspur | 1:1 (0:1) | ||
| R | Tottenham Hotspur | - | Aberdeen FC | 4:1 (2:0) | ||
| U: 24.10.1973 20:30 | R: 07.11.1973 20:30 | Winnaars: Tottenham Hotspur | ||||
| U | Feyenoord | - | Gwardia Warszawa | 3:1 (0:1) | ||
| R | Gwardia Warszawa | - | Feyenoord | 1:0 (1:0) | ||
| U: 24.10.1973 20:30 | R: 06.11.1973 17:30 | Winnaars: Feyenoord | ||||
| U | Ipswich Town | - | Lazio Roma | 4:0 (2:0) | ||
| R | Lazio Roma | - | Ipswich Town | 4:2 (2:0) | ||
| U: 24.10.1973 20:30 | R: 07.11.1973 21:00 | Winnaars: Ipswich Town | ||||
| U | Leeds United | - | Hibernian FC | 0:0 (0:0) | ||
| R | Hibernian FC | - | Leeds United | 4:5 (0:0, 0:0, 0:0) d.p. | ||
| U: 24.10.1973 20:30 | R: 07.11.1973 20:45 | Winnaars: Leeds United | ||||
| U | OGC Nice | - | Fenerbahçe | 4:0 (2:0) | ||
| R | Fenerbahçe | - | OGC Nice | 2:0 (1:0) | ||
| U: 24.10.1973 20:30 | R: 07.11.1973 19:00 | Winnaars: OGC Nice | ||||
| U | Panachaiki GE | - | FC Twente '65 | 1:1 (1:1) | ||
| R | FC Twente '65 | - | Panachaiki GE | 7:0 (0:0) | ||
| U: 25.10.1973 14:30 | R: 08.11.1973 20:00 | Winnaars: FC Twente '65 | ||||
