Yoo Joo-sang

Yoo Joo-sang is a Korean featherweight prospect who has caught the UFC's attention with an undefeated record and striking prowess. Nicknamed 'Zombie Jr,' he draws natural comparisons to the legendary Korean Zombie and arrived at the promotion with a reputation for finishing opponents. His UFC debut came at UFC 316, where he earned a knockout victory and immediately signaled he belonged in the octagon. By October 2025, less than a year into his UFC tenure, Yoo faced the more experienced Daniel Santos at UFC 320 in a featherweight matchup (contested at catchweight after both fighters missed the divisional limit). He dominated the bout and secured a knockout finish in the second round, delivering one of the year's most striking finishing sequences according to mid-year MMA awards voters. That performance - combined with his undefeated record and youth - positions him as a rising threat in a loaded 145-pound division. While still early in his UFC arc, Yoo has already demonstrated the finishing power and octagon poise that suggest significant upside.