UFC fighter Raul Rosas Jr. makes history at 21, youngest ever signed to UFC and youngest to win in Octagon.

21 YEARS OLD… AND ALREADY MAKING UFC HISTORY. Raul Rosas Jr. burst onto the UFC scene at just 17 years and 11 months, becoming the youngest fighter ever signed by the promotion and later the youngest fighter to earn a victory inside the Octagon. Now known as “El Niño Problema,” Rosas Jr. continues to make waves in the bantamweight division with his relentless wrestling, dangerous grappling, and remarkable composure for someone so young. And the craziest part? He’s still only 21. After his latest victory over Rob Font, Rosas Jr. is showing that he’s more than just a highly touted prospect — he’s becoming a legitimate threat in one of the UFC’s deepest divisions. Could Rosas Jr. eventually break Jon Jones’ record and become the youngest UFC champion in history?