 |
| 1st(1st leg) | Grêmio Porto Alegre | - | Vasco da Gama - RJ | 2:0 (0:0) | ||
| 2nd (2nd leg) | Vasco da Gama - RJ | - | Grêmio Porto Alegre | 0:0 | ||
| 1st(1st leg): 14/03/1990 | 2nd (2nd leg): 18/04/1990 | Winner: Grêmio Porto Alegre | ||||
|
| 1st(1st leg) | Grêmio Porto Alegre | - | Vasco da Gama - RJ | 2:0 (0:0) | ||
| 2nd (2nd leg) | Vasco da Gama - RJ | - | Grêmio Porto Alegre | 0:0 | ||
| 1st(1st leg): 14/03/1990 | 2nd (2nd leg): 18/04/1990 | Winner: Grêmio Porto Alegre | ||||
