| 9. Round | 12/04/2003 | Olimpo de Bahía Blanca | - | San Lorenzo | 0:1 | ||||
| 12. Round | 10/05/2003 | San Lorenzo | - | Vélez Sarsfield | 0:2 | ||||
| 13. Round | 23/05/2003 | Colón de Santa Fe | - | San Lorenzo | 0:1 | ||||
| 15. Round | 07/06/2003 | River Plate | - | San Lorenzo | 4:0 | ||||
| 19. Round | 05/07/2003 | Independiente | - | San Lorenzo | 0:1 |  |
Paraguay