| Copa Libertadores 1974 - Appearances as Referee |  |
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| 27/09/1974 | São Paulo FC | - | Millonarios | 4:0 | - | - | - |
| Copa Libertadores 1974 - Appearances as Referee | |
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| 27/09/1974 | São Paulo FC | - | Millonarios | 4:0 | - | - | - |
| Complete name: | Roberto Osvaldo Barreiro |
| Born: | |
| Place of birth: |
Argentina |
| Nationality: |
Argentina |