Education
Yonsei University.
Yonsei University.
After attending Yonsei University, Yun signed for German club FSV Frankfurt in May 2011, making his professional debut in the 2011-2012 season. He later played for SV Sandhausen and Football Club Seoul. He made his debut for Football Club Seoul on 19 March 2014, in their AFC Champions League match against Japanese club Sanfrecce Hiroshima.