Gu Sung-Yun
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- Date of birth
- June 27, 1994
Recent Club
- Kyoto Sanga Emperor Cup
- Kyoto Sanga J-League Cup
- Kyoto Sanga J1 League
- FC Seoul K League 1
- Seoul E-Land FC K League 2
- Seoul E-Land FC FA Cup
- FC Seoul FA Cup
Previous Clubs (13)
- Consadole Sapporo Emperor Cup 2024–2024
- Kyoto Sanga Emperor Cup 2024–2024
- Kyoto Sanga Emperor Cup 2025–2025
- Consadole Sapporo J-League Cup 2024–2024
- Kyoto Sanga J-League Cup 2024–2024
- Kyoto Sanga J-League Cup 2025–2025
- Consadole Sapporo J1 League 2024–2024
- Kyoto Sanga J1 League 2024–2024
- Kyoto Sanga J1 League 2025–2025
- FC Seoul K League 1 2025–2025
- Seoul E-Land FC K League 2 2025–2025
- Seoul E-Land FC FA Cup 2025–2025
- FC Seoul FA Cup 2025–2025