| Copa Libertadores 2009 - Appearances as Assistant | ||||
| 10/02/2009 | Defensor Sporting | - | América de Cali | 1:0 |
| 12/02/2009 | Nacional | - | Universidad San Martín | 2:1 |
| 19/03/2009 | Guaraní | - | Boca Juniors | 1:3 |
| 09/04/2009 | São Paulo FC | - | Defensor Sporting | 2:1 |
| Copa Libertadores 2009 - Appearances as Assistant | ||||
| 10/02/2009 | Defensor Sporting | - | América de Cali | 1:0 |
| 12/02/2009 | Nacional | - | Universidad San Martín | 2:1 |
| 19/03/2009 | Guaraní | - | Boca Juniors | 1:3 |
| 09/04/2009 | São Paulo FC | - | Defensor Sporting | 2:1 |
| Complete name: | Sergio Mauricio Román Retamal |
| Born: | 11/02/1969 |
| Place of birth: |
Chile |
| Nationality: |
Chile |