| Copa Libertadores 1973 - Appearances as Referee |  |
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| 24/02/1973 | Emelec | - | El Nacional | 2:0 | - | - | - |
| Copa Libertadores 1973 - Appearances as Referee | |
|
|
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| 24/02/1973 | Emelec | - | El Nacional | 2:0 | - | - | - |
| Complete name: | Octavio Sierra |
| Born: | |
| Place of birth: |
Colombia |
| Nationality: |
Colombia |