Charles Oliveira da Silva, born October 17, 1989, in Guarujá, São Paulo, Brazil, is a professional mixed martial artist and Brazilian Jiu-Jitsu black belt. He competes in the Lightweight division of the Ultimate Fighting Championship (UFC) and is renowned for his exceptional submission skills. Oliveira holds multiple UFC records, including the most submission wins (16) and the most finishes (19) in the organization's history[1][2]. Beginning Brazilian Jiu-Jitsu training at age 12, Oliveira quickly rose through the ranks, winning major titles as a white belt and later earning his black belt under the guidance of Jorge Patino[1][2]. Overcoming significant health challenges in childhood, including rheumatic fever and a heart murmur that once threatened his mobility, Oliveira transitioned from a difficult upbringing in the favelas of São Paulo to become one of the sport's most inspiring figures[3]. Oliveira made his UFC debut as a young fighter and initially faced setbacks, including a reputation for struggling under pressure. However, after a career-threatening neck injury in 2018, he rebounded strongly, motivated by the birth of his daughter. Moving up a weight class revitalized his career, leading to a dominant winning streak and ultimately capturing the UFC Lightweight Championship in May 2021[4]. He is currently ranked among the top fighters globally in the lightweight and pound-for-pound UFC rankings. Oliveira's recent performances continue to highlight his aggressive fighting style and technical grappling, maintaining his relevance and status as a key figure in mixed martial arts[1][5][6].