Who is Jalen Fonacier, the 21-year-old two-time world champion fighting for the UFC BJJ bantamweight title
A Cobrinha student since he was a kid, the American is unbeaten in the event and faces Brazil’s Kleber Barboza at UFC BJJ 13 on October 29
Jalen Fonacier is 21 years old. He has two black belt world titles and has never lost in UFC BJJ. On October 29, at UFC BJJ 13 in Las Vegas, the American faces Brazil’s Kleber Barboza for the bantamweight title, the belt that used to belong to Mikey Musumeci. The match was announced during UFC BJJ 12.
“Time to claim what’s mine. I’ve worked all my life to get to this point and have shown time and time again why I belong here. It’s gonna be no different than before. History is going to be made once again,” Fonacier wrote on social media after the announcement.
On the mats since age 2
Michael Jalen Fonacier was born on August 9, 2005, in Los Angeles, California. He started jiu-jitsu at age 2, when his father and an uncle took him to Rey Diogo’s academy. As a yellow belt, he moved to Alliance Los Angeles to train under Rubens Charles, known as Cobrinha, and he is still there today. Cobrinha gave him his black belt on May 31, 2024, when Fonacier was 18.
His nickname, “The Future,” comes from childhood and is part of his social media handle. At the colored belts, Fonacier won the juvenile World Championship in the open class in 2022, the No-Gi Worlds and No-Gi Pans at purple belt in 2023, and both the Pans and the Worlds at brown belt in 2024.
World champion at 19
His first full season as a black belt, in 2025, ended with the IBJJF world title at roosterweight, the lightest men’s division in jiu-jitsu. Earlier that year, he lost the European final to Yuri Hendrex, 2-0, and then beat the same opponent in the Pans final by referee decision. At Worlds, he submitted Oziel Santos in the quarterfinals, got past Thalison Soares in the semifinal by one advantage and beat Carlos “Bebeto” Oliveira in the final.
When he celebrated the title, Fonacier described himself as the first Filipino-American world champion, the youngest roosterweight world champion and a full-time college student. “19 years old and I accomplished my dream and the biggest feat in Gi Jiu-Jitsu. 17 years of mat time, hard work, discipline, and work ethic all for this,” he wrote.
In 2026, he opened the year with the European title in Lisbon, with three submissions in three matches. At Pans, he lost in the quarterfinals to Marcos Gomes, 2-0. At Worlds, in Long Beach, he submitted all three opponents on the first day, beat Yuri Hendrex 8-6 in the semifinal and met Thalison Soares again in the final. The match ended 2-2 and was decided on advantages.
“In the most stacked, and hardest roosterweight bracket BJJ has seen, I was able to defend my title and become a 2x world champion,” he wrote after the win. Fonacier is also on the VF Comunica Data list of the black belts who submit the most in 2026.
Four matches, four wins in UFC BJJ
UFC BJJ matches are no-gi, which means the athletes do not wear the traditional uniform. Fonacier made his debut there in July 2025, at UFC BJJ 2, and won with a heel hook against Everton Teixeira. In October of the same year, at UFC BJJ 3, he submitted Pedro Nakano with the same move.
The third win came in February 2026, at UFC BJJ 5: a heel hook on Bebeto Oliveira 19 seconds into the match, the fastest submission ever recorded in the organization. Leg locks, by the way, dominated UFC BJJ 12, with four of the five submissions of the night.
His most recent match was on August 20, at UFC BJJ 10, against Mourece Ramirez. For the first time in the event, Fonacier needed all three rounds, and he won by unanimous decision. Later, he said he went into the match without his normal preparation. “I was out of training for 2 weeks straight due to a leg injury that kept me completely off the mats and out of my normal strength and conditioning schedule. I was only able to get back to it on Monday, 3 days before my fight,” he wrote.
In the same post, he said he was going into a match at 135 pounds when he was walking around at 133 to 134 pounds. In the IBJJF, the roosterweight division where he is a two-time world champion has a limit of 57.5 kg, about 127 pounds, with the gi on.
The belt that was Musumeci’s
Mikey Musumeci won the UFC BJJ bantamweight title at the first edition of the event. After UFC BJJ 11, in September, Musumeci told reporters he planned to talk to the UFC about leaving the belt vacant.
Fonacier thanked the former champion when he wrote about the title match. “Thank you to my bro @mikeymusumeci for believing in me and giving me the blessing to chase this title,” he wrote. Musumeci replied on the announcement post with “And the new,” the phrase used to introduce a new champion, and tagged Fonacier’s profile.
A seminar in Arizona before the title match
On the other side will be Kleber Barboza, from the Dream Art team, who earned the chance after standing out at one of the UFC BJJ Opens. “For everyone who believes in me. Let’s go together!” the Brazilian wrote, in Portuguese.
Five days before the match, on October 24, Fonacier teaches a seminar in Arizona at Lotus Club Fight & Fitness, the academy of professor Sean Downie. “I’ve grown up around Sean and his students since a kid, so it’s such an honor to come visit and share my knowledge at his academy,” he wrote when he announced the event.
UFC BJJ 13 takes place on October 29 at the Meta APEX in Las Vegas and streams on UFC Fight Pass in the United States. The card also has Nata Tenca against Nicky Rod. His titles and recent matches are on the Jalen Fonacier profile page on VF Comunica.
