Retired soccer player most famous for scoring the winning goal for South Korea against Italy in the 2002 FIFA World Cup. He was named as the K League's Most Valuable Player in 1999.
He was born in Paju, Gyeonggi and began his professional career with the K League's Busan Daewoo Royals in 1998.
He played for the Italian team Perugia but was dismissed from the team after scoring the goal which eliminated Italy from the 2002 FIFA World Cup.
He married Lee Hye-won, who was previously named Miss Korea, in 2001.
He and Lee Dong-gook were both named Most Valuable Player of the K League.