Yukio Tani was a pioneering Japanese jujutsu and judo instructor and professional challenge wrestler, notable for being one of the first jujutsu stylists to teach and compete outside of Japan.

Masutaro Otani, was an 8th-Dan Japanese master of judo and a pioneer of judo in the United Kingdom and a leading student of Yukio Tani. He was best known for his speed and agility and was reputed to b