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| 1st(1st leg) | River Plate | - | Barcelona | 1:0 (0:0) | ||
| 2nd (2nd leg) | Barcelona | - | River Plate | 4:3 (1:0, 1:0, 1:0) pso | ||
| 1st(1st leg): 05/09/1990 | 2nd (2nd leg): 12/09/1990 | Winner: Barcelona | ||||
| 1st(1st leg) | Atlético Nacional | - | Club Olimpia | 1:2 (1:1) | ||
| 2nd (2nd leg) | Club Olimpia | - | Atlético Nacional | 2:1 (1:1, 2:3, 2:3) pso | ||
| 1st(1st leg): 20/09/1990 | 2nd (2nd leg): 26/09/1990 | Winner: Club Olimpia | ||||
