| U20 World Cup 1999 Nigeria - Appearances as Referee |  |
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| 07/04/1999 | Nigeria | - | Germany | 2:0 | 3 | - | - |
| 10/04/1999 | Costa Rica | - | Germany | 2:1 | 8 | 1 | - |
| 15/04/1999 | Mali | - | Cameroon | 5:4 aet | 9 | 1 | 2 |
| 24/04/1999 | Japan | - | Spain | 0:4 | 4 | - | - |
| U20 World Cup 1999 Nigeria - Appearances as Referee | |
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|
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| 07/04/1999 | Nigeria | - | Germany | 2:0 | 3 | - | - |
| 10/04/1999 | Costa Rica | - | Germany | 2:1 | 8 | 1 | - |
| 15/04/1999 | Mali | - | Cameroon | 5:4 aet | 9 | 1 | 2 |
| 24/04/1999 | Japan | - | Spain | 0:4 | 4 | - | - |
| Complete name: | Ángel Osvaldo Sánchez |
| Born: | 03/03/1957 |
| Place of birth: |
Buenos Aires, 
Argentina |
| Nationality: |
Argentina |
| Height: | 180 cm |
| Weight: | 83 kg |