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| 1st(1st leg) | SSC Napoli | - | ACF Fiorentina | 2:1 (1:0) | ||
| 2nd (2nd leg) | ACF Fiorentina | - | SSC Napoli | 0:0 (0:0) | ||
| 1st(1st leg): 14/11/1990 | 2nd (2nd leg): 21/11/1990 | Winner: SSC Napoli | ||||
| 1st(1st leg) | Sampdoria | - | US Cremonese | 1:1 (0:1) | ||
| 2nd (2nd leg) | US Cremonese | - | Sampdoria | 2:3 (1:0) | ||
| 1st(1st leg): 14/11/1990 | 2nd (2nd leg): 21/11/1990 | Winner: Sampdoria | ||||
| 1st(1st leg) | Juventus | - | Pisa SC | 3:2 (2:1) | ||
| 2nd (2nd leg) | Pisa SC | - | Juventus | 1:2 (0:2) | ||
| 1st(1st leg): 14/11/1990 | 2nd (2nd leg): 21/11/1990 | Winner: Juventus | ||||
| 1st(1st leg) | AS Roma | - | Genoa CFC | 2:0 (1:0) | ||
| 2nd (2nd leg) | Genoa CFC | - | AS Roma | 1:1 (0:0) | ||
| 1st(1st leg): 14/11/1990 | 2nd (2nd leg): 21/11/1990 | Winner: AS Roma | ||||
| 1st(1st leg) | Atalanta | - | AS Bari | 1:0 (1:0) | ||
| 2nd (2nd leg) | AS Bari | - | Atalanta | 3:0 (0:0) | ||
| 1st(1st leg): 14/11/1990 | 2nd (2nd leg): 21/11/1990 | Winner: AS Bari | ||||
| 1st(1st leg) | AC Milan | - | US Lecce | 3:0 (0:0) | ||
| 2nd (2nd leg) | US Lecce | - | AC Milan | 2:2 (1:1) | ||
| 1st(1st leg): 14/11/1990 | 2nd (2nd leg): 21/11/1990 | Winner: AC Milan | ||||
| 1st(1st leg) | Bologna FC | - | Modena FC | 1:0 (1:0) | ||
| 2nd (2nd leg) | Modena FC | - | Bologna FC | 1:2 (0:1) | ||
| 1st(1st leg): 15/11/1990 | 2nd (2nd leg): 22/11/1990 | Winner: Bologna FC | ||||
| 1st(1st leg) | Inter | - | Torino FC | 2:1 (0:1) | ||
| 2nd (2nd leg) | Torino FC | - | Inter | 1:0 (1:0) | ||
| 1st(1st leg): 09/01/1991 | 2nd (2nd leg): 23/01/1991 | Winner: Torino FC | ||||
