Marcus Almeida, also known as "Buchecha," is a Brazilian jiu-jitsu practitioner and mixed martial artist. Born on December 8, 1990, in São Bernardo do Campo, Brazil, he is widely regarded as one of the greatest grapplers in the history of the sport. Almeida has won numerous titles, including multiple IBJJF World Championships, showcasing his exceptional skills in both gi and no-gi competitions. In addition to his jiu-jitsu achievements, Almeida transitioned to mixed martial arts (MMA) and signed with ONE Championship in 2020. His background in grappling has made him a formidable competitor in the cage, where he continues to pursue success in this new arena.