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| H (Match allé) | AS Monaco | - | Sampdoria | 2:2 (1:0) | ||
| R (match retour) | Sampdoria | - | AS Monaco | 2:0 (1:0) | ||
| H (Match allé): 03.04.1990 | R (match retour): 18.04.1990 | vainqueur: Sampdoria | ||||
| H (Match allé) | RSC Anderlecht | - | Dinamo Bucureşti | 1:0 (0:0) | ||
| R (match retour) | Dinamo Bucureşti | - | RSC Anderlecht | 0:1 (0:0) | ||
| H (Match allé): 04.04.1990 | R (match retour): 18.04.1990 | vainqueur: RSC Anderlecht | ||||
