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Shinji Kagawa made his senior international debut for Japan in May 2008, at the age of 19. He played in a friendly match against Chile, which Japan lost 2-0. Kagawa has since gone on to become a key player for the Japanese national team, and he has represented them at the 2010 and 2014 FIFA World Cups, as well as the 2011 and 2015 AFC Asian Cups.