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Raul Rosas Jr.’s brother reportedly set for UFC debut at Noche UFC 4 Young featherweight debutants are reportedly set to clash at the fourth edition of Ultimate Fighting Championship’s Mexican Independence Day celebration. Jessie Rosas will take on Sean King in a featherweight clash at Noche UFC 4 on Sept. 12 at Desert Diamond Arena in Glendale, Arizona. They are set to collide on the Fight Night’s prelims. Rosas (8-1) is currently on a three-fight winning streak since his lone professional loss in 2024. The 23-year-old has finished six of his eight career wins. While Rosas shuffles between bantamweight and featherweight, he will make his UFC debut at 145 pounds. He is the older brother of UFC bantamweight Raul Rosas Jr. Meanwhile, King (6-0) was originally expected to fight on Dana White’s Contender Series in October. However, the 22-year-old now gets a direct entry into the big stage. King is undefeated in six pro fights since turning pro last year. He also has a perfect amateur record filled with submission wins. The matchup was first reported by Marcel Dorff. Jessie Rosas will take on Sean King in a featherweight clash at Noche UFC 4 on Sept. 12 at Desert Diamond Arena in Glendale, Arizona. They are set to collide on the Fight Night’s prelims. Advertisement Jessie Rosas draws unbeaten Sean King for his UFC debut in Glendale Rosas (8-1) is currently on a three-fight winning streak since his lone professional loss in 2024. The 23-year-old has finished six of his eight career wins. While Rosas shuffles between bantamweight and featherweight, he will make his UFC debut at 145 pounds. He is the older brother of UFC bantamweight Raul Rosas Jr. Meanwhile, King (6-0) was originally expected to fight on Dana White’s Contender Series in October. However, the 22-year-old now gets a direct entry into the big stage. King is undefeated in six pro fights since turning pro last year. He also has a perfect amateur record filled with submission wins. The matchup was first reported by Marcel Dorff. 🚨🚨#NocheUFC🚨🚨 — Marcel Dorff 🇳🇱🇮🇩 (@BigMarcel24) September 4, 2026 Double debuts at #NocheUFC. Jessie Rosas takes on Sean King next week in Glendale, Arizona. pic.twitter.com/qF0JrmH3q4 More