| Copa Libertadores 2008 - Appearances as Referee |  |
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 |
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| 05/02/2008 | La Paz FC | - | Atlas Guadalajara | 1:0 | 4 | - | - |
| 02/04/2008 | Universidad Católica | - | Universidad San Martín | 1:0 | 5 | - | 1 |
| Copa Libertadores 2008 - Appearances as Referee | |
|
|
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| 05/02/2008 | La Paz FC | - | Atlas Guadalajara | 1:0 | 4 | - | - |
| 02/04/2008 | Universidad Católica | - | Universidad San Martín | 1:0 | 5 | - | 1 |
| Complete name: | Antonio Javier Arias Alvarenga |
| Born: | 07/09/1972 |
| Place of birth: |
Paraguay |
| Nationality: |
Paraguay |