| U20 World Cup 2011 Colombia - Appearances as Assistant | ||||
| 01/08/2011 | Egypt | - | Panama | 1:0 |
| 05/08/2011 | Portugal | - | New Zealand | 1:0 |
| 11/08/2011 | France | - | Ecuador | 1:0 |
| U20 World Cup 2011 Colombia - Appearances as Assistant | ||||
| 01/08/2011 | Egypt | - | Panama | 1:0 |
| 05/08/2011 | Portugal | - | New Zealand | 1:0 |
| 11/08/2011 | France | - | Ecuador | 1:0 |
| Complete name: | Byoung-eun Yang |
| Born: | 01/03/1976 |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |