| U20 World Cup 2009 Egypt - Appearances as Assistant | ||||
| 26/09/2009 | USA | - | Germany | 0:3 |
| 29/09/2009 | Ghana | - | England | 4:0 |
| 16/10/2009 | Hungary | - | Costa Rica | 3:1 pso |
| U20 World Cup 2009 Egypt - Appearances as Assistant | ||||
| 26/09/2009 | USA | - | Germany | 0:3 |
| 29/09/2009 | Ghana | - | England | 4:0 |
| 16/10/2009 | Hungary | - | Costa Rica | 3:1 pso |
| Complete name: | Hae-sang Jeong |
| Born: | 01/06/1971 |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |