| Group 1 | 24/02/1973 | Jorge Wilstermann | - | San Lorenzo | 1:0 | ||||
| Group 1 | 27/02/1973 | Oriente Petrolero | - | San Lorenzo | 0:3 | ||||
| Group 1 | 20/03/1973 | San Lorenzo | - | Oriente Petrolero | 4:0 | ||||
| Group 1 | 22/03/1973 | San Lorenzo | - | Jorge Wilstermann | 3:0 | ||||
| Group 1 | 27/03/1973 | River Plate | - | San Lorenzo | 0:4 |  |
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| Group A | 11/04/1973 | Millonarios | - | San Lorenzo | 0:0 | ||||
| Group A | 24/04/1973 | San Lorenzo | - | Millonarios | 2:0 | ||||
| Group A | 05/05/1973 | San Lorenzo | - | Independiente | 2:2 | ||||
| Group A | 09/05/1973 | Independiente | - | San Lorenzo | 1:0 |
Argentina