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| H | Grasshopper Club Zürich | - | Budapest Honved SE | 3:1 (1:1) | ||
| R | Budapest Honved SE | - | Grasshopper Club Zürich | 2:1 (1:1) | ||
| H: 19.09.1984 | R: 03.10.1984 | Sieger: Grasshopper Club Zürich | ||||
| H | Trabzonspor | - | Dnepr Dnepropetrovsk | 1:0 (1:0) | ||
| R | Dnepr Dnepropetrovsk | - | Trabzonspor | 3:0 (0:0) | ||
| H: 19.09.1984 14:00 | R: 03.10.1984 | Sieger: Dnepr Dnepropetrovsk | ||||
| H | Lech Poznań | - | Liverpool FC | 0:1 (0:0) | ||
| R | Liverpool FC | - | Lech Poznań | 4:0 (3:0) | ||
| H: 19.09.1984 16:00 | R: 03.10.1984 20:30 | Sieger: Liverpool FC | ||||
| H | KS Labinoti Elbasan | - | Lyngby BK | 0:3 (0:0) | ||
| R | Lyngby BK | - | KS Labinoti Elbasan | 3:0 (0:0) | ||
| H: 19.09.1984 16:15 | R: 03.10.1984 19:00 | Sieger: Lyngby BK | ||||
| H | Dinamo Bucureşti | - | Omonia Nikosia | 4:1 (4:1) | ||
| R | Omonia Nikosia | - | Dinamo Bucureşti | 2:1 (0:0) | ||
| H: 19.09.1984 17:00 | R: 03.10.1984 20:30 | Sieger: Dinamo Bucureşti | ||||
| H | Vålerenga IF | - | TJ Sparta ČKD Praha | 3:3 (1:2) | ||
| R | TJ Sparta ČKD Praha | - | Vålerenga IF | 2:0 (2:0) | ||
| H: 19.09.1984 17:30 | R: 03.10.1984 17:00 | Sieger: TJ Sparta ČKD Praha | ||||
| H | Crvena Zvezda | - | SL Benfica | 3:2 (0:2) | ||
| R | SL Benfica | - | Crvena Zvezda | 2:0 (0:0) | ||
| H: 19.09.1984 17:30 | R: 03.10.1984 21:00 | Sieger: SL Benfica | ||||
| H | Levski Sofia | - | VfB Stuttgart | 1:1 (0:0) | ||
| R | VfB Stuttgart | - | Levski Sofia | 2:2 (2:1) | ||
| H: 19.09.1984 19:00 | R: 03.10.1984 20:00 | Sieger: Levski Sofia | ||||
| H | Ilves Tampere | - | Juventus | 0:4 (0:2) | ||
| R | Juventus | - | Ilves Tampere | 2:1 (0:1) | ||
| H: 19.09.1984 19:00 | R: 03.10.1984 20:30 | Sieger: Juventus | ||||
| H | ÍA Akranes | - | KSK Beveren | 2:2 (0:0) | ||
| R | KSK Beveren | - | ÍA Akranes | 5:0 (2:0) | ||
| H: 19.09.1984 19:00 | R: 03.10.1984 20:00 | Sieger: KSK Beveren | ||||
| H | Aberdeen FC | - | BFC Dynamo | 2:1 (1:0) | ||
| R | BFC Dynamo | - | Aberdeen FC | 5:4 (0:0, 2:1, 2:1) i.E. | ||
| H: 19.09.1984 19:30 | R: 03.10.1984 17:00 | Sieger: BFC Dynamo | ||||
| H | Austria Wien | - | Valletta FC | 4:0 (3:0) | ||
| R | Valletta FC | - | Austria Wien | 0:4 (0:1) | ||
| H: 19.09.1984 19:30 | R: 03.10.1984 15:00 | Sieger: Austria Wien | ||||
| H | Avenir Beggen | - | IFK Göteborg | 0:8 (0:3) | ||
| R | IFK Göteborg | - | Avenir Beggen | 9:0 (4:0) | ||
| H: 19.09.1984 19:30 | R: 03.10.1984 19:00 | Sieger: IFK Göteborg | ||||
| H | Feyenoord | - | Panathinaikos | 0:0 (0:0) | ||
| R | Panathinaikos | - | Feyenoord | 2:1 (2:0) | ||
| H: 19.09.1984 20:00 | R: 03.10.1984 21:00 | Sieger: Panathinaikos | ||||
| H | Linfield FC | - | Shamrock Rovers | 0:0 (0:0) | ||
| R | Shamrock Rovers | - | Linfield FC | 1:1 (0:1) | ||
| H: 19.09.1984 20:00 | R: 03.10.1984 14:30 | Sieger: Linfield FC | ||||
| H | Girondins Bordeaux | - | Athletic Bilbao | 3:2 (1:1) | ||
| R | Athletic Bilbao | - | Girondins Bordeaux | 0:0 (0:0) | ||
| H: 19.09.1984 20:30 | R: 03.10.1984 20:30 | Sieger: Girondins Bordeaux | ||||
