Kōtetsuyama Toyoya

Kōtetsuyama Toyoya (高鉄山 豊也) (July 9, 1942 – April 14, 1996), born Kōnoshin Suga (菅 孝之進, Suga Kōnoshin), was a sumo wrestler from Otaru, Hokkaidō, Japan. He made his professional debut in March 1957, and reached the top division in September 1963. His highest rank was sekiwake. He retired in January 1975. He set up the Onaruto stable and produced the top division wrestler Itai. He died in somewhat mysterious circumstances in 1996, a month before claims he made about match fixing in sumo were published.