https://en.wikipedia.org/wiki/Masakazu_Imanari#Fighting_style Imanari is primarily a grappler, and is universally known for his skill and preference for leglocks,[6] which gained him the nickname of "Ashikan Judan" ("The Great Master of Leg Submissions"). Though his striking game is considered inferior,[6][7] Imanari often engages in stand-up battles in order to bait the opponent to the ground, usually by dropping down after or while seizing control of his leg[7] or by way of ashi garami.[8] He stands out for his dexterity in toehold and heel hook variations, and is an avid user of the 50/50 guard in order to transition between submission attempts.[7] He describes his signature leglock style as not based in sambo as it is popularly believed, but "purely self-taught",[1] and explained his preference for it as "because it hurts the opponent".[9] The "Imanari Roll"[10][11] (rolling from a stand up position into a leglock) and the "Imanari Choke"[12][13] (a combination of an omoplata and a rear naked choke) are grappling moves named after him due to his usage of them.