Answer
Kōji Nakata played for the youth club of Kashima Antlers. The Kashima Antlers are a professional football club based in Kashima, Ibaraki, Japan. The club was founded in 1992 and has been playing in the J1 League, the top tier of Japanese football, since its inception. The club has won the J1 League eight times, the Emperor's Cup six times, and the J.League Cup six times.