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Jeju United is a professional football club based in the city of Jeju, South Korea. The club was founded in 1983 and currently competes in the K League 1, the top tier of South Korean football. Jeju United's home stadium is the Jeju World Cup Stadium, which was built for the 2002 FIFA World Cup. The club has won the Korean FA Cup twice, in 2006 and 2010.