2. Round | 07/08/1990 | Cerro Porteño | - | Atlético Nacional | 0:0 | ||||
2. Round | 14/08/1990 | Atlético Nacional | - | Cerro Porteño | 1:0 | ||||
Quarter-finals | 21/08/1990 | Vasco da Gama - RJ | - | Atlético Nacional | 0:0 | ||||
Quarter-finals | 28/08/1990 | Atlético Nacional | - | Vasco da Gama - RJ | annull. | ||||
Quarter-finals | 12/09/1990 | Atlético Nacional | - | Vasco da Gama - RJ | 1:0 | ||||
Semi-finals | 19/09/1990 | Atlético Nacional | - | Club Olimpia | 1:2 | ||||
Semi-finals | 25/09/1990 | Club Olimpia | - | Atlético Nacional | 2:1 pso |