Mitsuyo Maeda , a Brazilian naturalized as Otávio Maeda , was a Japanese judōka and prizefighter in no holds barred competitions. He was known as Count Combat or Conde Koma in Spanish and Portuguese, a nickname he picked up in Spain in 1908. Along with Antônio Soshihiro Satake, he pioneered judo in Brazil, the United Kingdom, and other countries.

Brazilian jiu-jitsu is a self-defence martial art and combat sport based on grappling, ground fighting, and submission holds. BJJ focuses on taking ones opponent down to the ground, gaining a dominant position, and using a number of techniques to force them into submission via joint locks or chokeholds.