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| 1st(1st leg) | Club Olimpia | - | Universidad Católica | 2:0 (0:0) | ||
| 2nd (2nd leg) | Universidad Católica | - | Club Olimpia | 4:4 (2:2) | ||
| 1st(1st leg): 22/08/1990 | 2nd (2nd leg): 29/08/1990 | Winner: Club Olimpia | ||||
| 1st(1st leg) | Emelec | - | Barcelona | 0:0 (0:0) | ||
| 2nd (2nd leg) | Barcelona | - | Emelec | 1:0 (1:0) | ||
| 1st(1st leg): 22/08/1990 | 2nd (2nd leg): 29/08/1990 | Winner: Barcelona | ||||
| 1st(1st leg) | River Plate | - | Independiente | 2:0 (2:0) | ||
| 2nd (2nd leg) | Independiente | - | River Plate | 1:1 (1:0) | ||
| 1st(1st leg): 22/08/1990 | 2nd (2nd leg): 29/08/1990 | Winner: River Plate | ||||
| 1st(1st leg) | Vasco da Gama - RJ | - | Atlético Nacional | 0:0 (0:0) | ||
| 2nd (2nd leg) | Atlético Nacional | - | Vasco da Gama - RJ | annull. | ||
| 1st(1st leg): 22/08/1990 | 2nd (2nd leg): 29/08/1990 | Winner: Atlético Nacional | ||||
| decisive matches | ||||||
|---|---|---|---|---|---|---|
| Atlético Nacional | - | Vasco da Gama - RJ | 1:0 (1:0) | |||
