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| 1st(1st leg) | RSC Anderlecht | - | Admira/Wacker | 2:0 (2:0) | ||
| 2nd (2nd leg) | Admira/Wacker | - | RSC Anderlecht | 1:1 (0:0) | ||
| 1st(1st leg): 06/03/1990 | 2nd (2nd leg): 21/03/1990 | Winner: RSC Anderlecht | ||||
| 1st(1st leg) | Real Valladolid | - | AS Monaco | 0:0 (0:0) | ||
| 2nd (2nd leg) | AS Monaco | - | Real Valladolid | 3:1 (0:0, 0:0, 0:0) pso | ||
| 1st(1st leg): 07/03/1990 | 2nd (2nd leg): 20/03/1990 | Winner: AS Monaco | ||||
| 1st(1st leg) | Dinamo Bucureşti | - | Partizan | 2:1 (1:0) | ||
| 2nd (2nd leg) | Partizan | - | Dinamo Bucureşti | 0:2 (0:0) | ||
| 1st(1st leg): 07/03/1990 | 2nd (2nd leg): 21/03/1990 | Winner: Dinamo Bucureşti | ||||
| 1st(1st leg) | Sampdoria | - | Grasshopper Club Zürich | 2:0 (1:0) | ||
| 2nd (2nd leg) | Grasshopper Club Zürich | - | Sampdoria | 1:2 (0:1) | ||
| 1st(1st leg): 07/03/1990 | 2nd (2nd leg): 22/03/1990 | Winner: Sampdoria | ||||
