The welterweight MMA division is about to get a lot more interesting. Three new bouts have been added to ONE Fight Night 42 on Prime Video, airing live from Bangkok’s Lumpinee Stadium on Friday, April 10, headlined by a clash between two fighters who have never tasted defeat.
American rising star Chase “Mannimal” Mann takes on Turkish finisher Dzhabir Dzhabrailov in a welterweight MMA contest with major title implications. Both men are undefeated. Both men finish fights. And whichever of them walks out of Lumpinee still perfect could be next in line for two-sport king Christian Lee’s ONE Welterweight MMA World Title.
Mann, a 29-year-old Arkansas native, carries a 7-0 career record with five stoppage victories into the matchup. He made his promotional debut in January, taking a first-round TKO win after opponent Isi Fitikefu suffered a knee injury, but the dominant nature of that performance left little doubt about his quality.

Dzhabrailov, just 21 years old, has been even more emphatic. The Lions MMA Club representative owns a 6-0 record with all six victories coming by finish and has gone three for three inside ONE Championship, demolishing each opponent in under two minutes via knockout. He does not give opponents time to settle.
Also added to the card is a flyweight MMA showdown between Americans Joshua “Flyin Hawaiian” Perreira and Gilbert Nakatani. Perreira arrives at 5-0 after a promotional debut that was cut short by injury, and he is determined to make a statement in his second ONE appearance. Nakatani, 32, counters with a 9-3 record and growing momentum after a TKO win over Eko Roni Saputra last November — his first promotional victory after going the distance with both ONE Flyweight MMA World Champion Yuya Wakamatsu and Jeremy Miado in narrow defeats.
Rounding out the new additions is a rescheduled flyweight Muay Thai contest between Colombian-American striker Diego Paez and Thai brawler Black Panther. The pair were originally booked to meet at ONE Fight Night 40 in January, but Black Panther withdrew due to illness on fight day. With his health restored, the Thai is ready to finally make that fight happen.
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