Kongthoranee Sor Sommai is a man on a mission to stake his claim for the vacant ONE Flyweight Muay Thai World Title. To achieve that, he must defeat the legendary Nong-O Hama in the main event of ONE Fight Night 31 on 3 May.
The 28-year-old aims to prove that his first win over his compatriot was no fluke. He is determined to stamp his authority inside the iconic Lumpinee Stadium in Bangkok, Thailand, when the two collide in a pivotal flyweight Muay Thai contest.

This past February, the two-time Rajadamnern Stadium Muay Thai World Champion overwhelmed Nong-O with his relentless attacks. He, however, is pleased with his last performance and plans to end the rivalry once and for all.
"I was happy with my performance in the first fight, but others may have some doubts, so this time I will make it clear. I want to win this fight decisively so our rivalry can end here and there will be no trilogy match," Kongthoranee said.
Earning a win against a celebrated Muay Thai striker like Nong-O is on nearly every fighter's list. But it comes with its own challenges. After defeating the 38-year-old legend, Kongthoranee had to deal with a lot of trash talks from fans.
With 266 career wins and a 10-fight win streak during his early ONE tenure, Nong-O has proved what he is capable of. But the Sor Sommai athlete knows this really well and he's already prepared a plan.
"Yes, [I wanted the rematch] because this time everyone will finally be able to end their arguments. I learned that Nong-O has very good timing. The way to deal with him is that I have to be faster than him," Kongthoranee said.
"After I received a lot of trash messages, it motivated me to work harder so that no one will think negatively of me anymore. I expect this fight to be fierce, and as I said, if I get the chance to finish, I will go for it."