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Kazuma Watanabe (渡邉 千真, Watanabe Kazuma, born 10 August 1986) is a Japanese footballer who plays for Yokohama FC in the J2 League. He plays as a centre-forward and has previously had spells with Yokohama F. Marinos, FC Tokyo, Vissel Kobe and Gamba Osaka. His older brother Daigo Watanabe was also a professional soccer player with Kyoto Sanga FC, Omiya Ardija, Busan IPark and Kamatamare Sanuki.