| U20 World Cup 1977 in Tunesien - Appearances as Assistant | ||||
| 28/06/1977 | Uruguay | - | Hungary | 2:1 |
| 04/07/1977 | Hungary | - | Honduras | 0:2 |
| 10/07/1977 | Mexico | - | USSR | 8:9 pso |
| U20 World Cup 1977 in Tunesien - Appearances as Assistant | ||||
| 28/06/1977 | Uruguay | - | Hungary | 2:1 |
| 04/07/1977 | Hungary | - | Honduras | 0:2 |
| 10/07/1977 | Mexico | - | USSR | 8:9 pso |
| Complete name: | Arnaldo David Cézar Coelho |
| Born: | 15/01/1943 |
| Place of birth: |
Rio de Janeiro, 
Brazil |
| Nationality: |
Brazil |
| Profession: | Physiklehrer |