Mammoth Sasaki

Yoshinori Sasaki
佐々木嘉則
Sasaki in August 2010
Born	(1974-07-23) July 23, 1974 (age 50)[1] Osaka, Japan[1]
Professional wrestling career
Ring name(s)	Mammoth Sasaki Yoshinori Sasaki[2]
Billed height	188 cm (6 ft 2 in)[2]
Billed weight	125 kg (276 lb)[2]
Trained by	Katsutoshi Niiyama[2]
Debut	November 15, 1997
Martial arts career
Nationality	Japanese
Height	6 ft 0 in (183 cm)
Weight	275 lb (125 kg; 19.6 st)
Style	Shoot wrestling, Professional wrestling
Teacher(s)	Katsutoshi Niiyama
Years active	1993–1996 (Sumo wrestling) 1997–present (Professional wrestling) 2002 (MMA)
Mixed martial arts record from Sherdog

Yoshinori Sasaki (佐々木 嘉則, Sasaki Yoshinori, born 23 July 1974) is a Japanese professional wrestler and retired sumo wrestler and mixed martial artist, currently working for Pro Wrestling Freedoms under the ring name Mammoth Sasaki (マンモス佐々木, Manmosu Sasaki), where he is a former King of Freedom Tag Team Champion, becoming the longest reigning champion during his second reign with the title. He is best known for his time with Frontier Martial-Arts Wrestling (FMW), where he competed between 1997 until the promotion's closure in 2002.

After training at the FMW Dojo, Sasaki made his debut in December 1997 under his given name and competed as an enhancement talent through the early years of his career. His first push came when he became a member of Atsushi Onita's faction Team Zero in 1998. After years on the low-card, Sasaki won his first title, the WEW Hardcore Tag Team Championship with Hideki Hosaka in 2000 and changed his ring name to Mammoth Sasaki in the fall of the year and became a main eventer during the fall of 2001.^[1]