Junior Dos Santos is a Brazilian mixed martial artist and former UFC Heavyweight Champion. Born on January 30, 1984, in Caçador, Brazil, he began his career in boxing before transitioning to MMA. Known for his striking skills and knockout power, Dos Santos quickly rose through the ranks of the UFC. Throughout his career, he has faced many top fighters, including Cain Velasquez and Frank Mir. With a professional record that includes numerous victories, Dos Santos is recognized as one of the top heavyweights in the sport's history. His dedication and athleticism have made him a respected figure in mixed martial arts.