Yakau Zenko's coach is what ethnicity?
Eteri Tutberidze Eteri Georgievna Tutberidze (Russian: Этери Георгиевна Тутберидзе ; born 24 February 1974) is a Russian figure skating coach. She coaches ladies' and men's singles.
Kazuhito Sakae Kazuhito Sakae (栄 和人 , Sakae Kazuhito , born June 19, 1960) is a Japanese wrestling coach and retired wrestler who won several medals in the 62 kg category at the Asian and world level between 1983 and 1989. Remarkably, at the 1983 Asian Wrestling Championships, he won a gold medal in the freestyle wrestling and a silver in the Greco-Roman wrestling. After retiring from competitions he worked as a national coach, training Saori Yoshida, Kaori Icho, Hitomi Obara, Chiharu Icho and Eri Tosaka, among others.