Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Kim Hyun-Kwan (born 20 April 1985) is a South Korean football winger. He currently plays for Cheongju Jikji FC in the South Korean Challengers League. He played for South Korean club FC Seoul, Changwon City FC and Finnish club JJK. Association football, more commonly known as football or soccer, is a sport played between two teams of eleven players with a spherical ball. At the turn of the 21st century, the game was played by over 250 million players in over 200 countries, making it the world's most popular sport.