| K League 1 2017 Relegation - Appearances as Assistant | ||||
| 14/10/2017 | Sangju Sangmu | - | Daegu FC | 2:2 |
| 21/10/2017 | Jeonnam Dragons | - | Pohang Steelers | 1:3 |
| K League 1 2017 Relegation - Appearances as Assistant | ||||
| 14/10/2017 | Sangju Sangmu | - | Daegu FC | 2:2 |
| 21/10/2017 | Jeonnam Dragons | - | Pohang Steelers | 1:3 |
| Complete name: | Jae-yong Yang |
| Born: | |
| Place of birth: |
South Korea |
| Nationality: |
South Korea |