series
| March 13, 1973 | CL | 1973 | 5 | Cerro Porteño | 1 - 0 | Universitario | 1 | |
| Feb. 19, 1973 | CL | 1973 | 5 | Cerro Porteño | 2 - 0 | Universitario | 1 |
scoreboard
| CL | 1973 | 1 | River Plate | 0 - 1 | San Lorenzo de Almagro | 1 |
| March 13, 1973 | CL | 1973 | 5 | Cerro Porteño | 1 - 0 | Universitario | 1 | |
| Feb. 19, 1973 | CL | 1973 | 5 | Cerro Porteño | 2 - 0 | Universitario | 1 |
| CL | 1973 | 1 | River Plate | 0 - 1 | San Lorenzo de Almagro | 1 |