Tags: Sumo Wrestler, Wrestler.
Kiyonomori Masao (born 8 April 1935 as Masao Sasaki) is a former sumo wrestler from Ōmori Akita Japan. He made his professional debut in January 1953 and reached the top division in March 1959. His highest rank was maegashira 9. Upon retirement from active competition he became an elder in the Japan Sumo Association and took charge of Kise stable from his father-in-law Katsuragawa. He reached the Sumo Association’s mandatory retirement age in April 2000.