| Round of 16 | 15/09/2004 | San Lorenzo | - | Boca Juniors | 1:0 |  |
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| Round of 16 | 28/09/2004 | Boca Juniors | - | San Lorenzo | 4:1 aet | ||||
| Quarter-finals | 09/11/2004 | Cerro Porteño | - | Boca Juniors | 7:8 pso | ||||
| Semi-finals | 23/11/2004 | Boca Juniors | - | Internacional | 4:2 |
| Round of 16 | 15/09/2004 | San Lorenzo | - | Boca Juniors | 1:0 | |
|||
| Round of 16 | 28/09/2004 | Boca Juniors | - | San Lorenzo | 4:1 aet | ||||
| Quarter-finals | 09/11/2004 | Cerro Porteño | - | Boca Juniors | 7:8 pso | ||||
| Semi-finals | 23/11/2004 | Boca Juniors | - | Internacional | 4:2 |
| Pablo Sebastián Valeira Álvarez | |
| Born: | 17.04.1984 |
| Place of birth: |
San Martín, 
Argentina |
| Nationality: |
Argentina
Spain |
| Height: | 177 cm |
| Weight: | 75 kg |
| Position(s): | Right Back Left Back |
| Foot: | right |