Tatsuki Fuji (藤井 達樹, Fujii Tatsuki; born July 6, 1970), better known by his ring name Don Fujii (ドン・フジイ), is a Japanese professional wrestler and former sumo wrestler. He is signed to Dragongate, where he has wrestled for the majority of his 29-year career. As a sumo wrestler, he competed under the name Rikinoumi Tatsuki (stylized 力の湖 達樹 and 力の海 達樹); his highest rank was sandanme 51. He is a former Open the Dream Gate Champion, as well as of the former one-time AJPW All Asia Tag Team Champions with long-time partner Masaaki Mochizuki (as Mocchy-Fujii).
Source: “Don Fujii”, English Wikipedia (CC BY-SA 4.0), excerpt