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| U | River Plate | - | Barcelona | 1:0 (0:0) | ||
| R | Barcelona | - | River Plate | 4:3 (1:0, 1:0, 1:0) d.p. | ||
| U: 05.09.1990 | R: 12.09.1990 | Winnaars: Barcelona | ||||
| U | Atlético Nacional | - | Club Olimpia | 1:2 (1:1) | ||
| R | Club Olimpia | - | Atlético Nacional | 2:1 (1:1, 2:3, 2:3) d.p. | ||
| U: 20.09.1990 | R: 26.09.1990 | Winnaars: Club Olimpia | ||||
