Lito Adiwang is two fights into his flyweight campaign and has finished both opponents in the first round. The question on July 17 is whether Antonio Cesar can be the one to change that.
Adiwang meets the 22-year-old Brazilian in a flyweight MMA bout at ONE Fight Night 45 on Prime Video, broadcasting live in U.S. primetime from Lumpinee Stadium in Bangkok, Thailand, on Friday, July 17. Cesar replaces Joshua Perreira, who was originally scheduled for the matchup. The card is headlined by a featherweight Muay Thai encounter between Luke "The Chef" Lessei and Mohamed Younes Rabah.
Adiwang spent years as one of ONE Championship's most electric strawweight presences before moving up to flyweight. The transition has produced his most dominant run. His debut in the division at ONE Fight Night 37 last November was a first-round TKO of Mauro Mastromarini. He followed that at ONE Fight Night 43 in May by stopping Eko Roni Saputra in 34 seconds, demonstrating that the jump in weight had not cost him an ounce of finishing power.
Eighteen career victories and a 75 percent finishing rate back the case he has been building since arriving at 135 pounds. A third consecutive first-round finish on July 17 would push him firmly into contender conversations for a division he has begun to make his own.
Cesar is not a soft test. The Brazilian carries a 13-2 professional record into his ONE Championship debut on the back of an eight-fight winning streak. His two most recent wins came by rear-naked choke within two months of each other in 2026, and his submission game has been developing with each successive appearance on the South American circuit. He arrives without a gradual promotional introduction, facing a veteran who has been at the highest level of ONE Championship competition for years.
A Cesar win would reshape the flyweight landscape overnight and establish him as one of the division's most intriguing new arrivals. An Adiwang win would extend the most productive run of his career and strengthen his claim for a significant next booking at flyweight.
ONE Fight Night 45 broadcasts live in U.S. primetime on Amazon Prime Video from Lumpinee Stadium in Bangkok, Thailand, on Friday, July 17.
