| Copa Libertadores 1997 - Appearances as Referee |  |
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 |
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| 06/03/1997 | Bolívar | - | Cerro Porteño | 3:1 | - | - | - |
| 07/05/1997 | Vélez Sarsfield | - | Sporting Cristal | 0:1 | - | - | 2 |
| 27/05/1997 | Colo-Colo | - | Universidad Católica | 3:1 | - | - | - |
| Copa Libertadores 1997 - Appearances as Referee | |
|
|
||||
| 06/03/1997 | Bolívar | - | Cerro Porteño | 3:1 | - | - | - |
| 07/05/1997 | Vélez Sarsfield | - | Sporting Cristal | 0:1 | - | - | 2 |
| 27/05/1997 | Colo-Colo | - | Universidad Católica | 3:1 | - | - | - |
| Complete name: | Mario Sánchez Yanten |
| Born: | 22/07/1956 |
| Place of birth: |
Chile |
| Nationality: |
Chile |