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Kōji Nakata played in the 2002 and 2006 FIFA World Cups. A prominent Japanese defender, Nakata made significant contributions to his team's performances in both tournaments. In 2002, Japan co-hosted the World Cup and reached the Round of 16, while in 2006, they advanced to the Group Stage. Nakata's defensive prowess and leadership played a crucial role in Japan's success on the international stage.