Regian Eersel breaks down why Alexis Nicolas has been his most physically challenging opponent

Reigning and undisputed ONE lightweight Muay Thai world champion and former kickboxing king 'The Immortal' Regian Eersel admits he has finally met his match against conqueror 'Barboza' Alexis Nicolas.

Nicolas unseated Eersel from the Muay Thai throne last April at ONE Fight Night 21, losing via a five-round unanimous decision. He dominated 'The Immortal' like no one before him, and took the Dutch-Surinamese icon's gold.

Now, the two are ready to run it back, and Eersel says this time, he will not underestimate his French adversary.

Speaking to MMA UK in a recent interview, Eersel talked about his first fight with Nicolas, and why he lost that one.

'The Immortal' said:

"I wouldn't say toughest because each fight is different. Different opponents, different skills, different pain levels. Because you feel pain in a fight, of course. I think mentally, it was Arian Sadikovic, and physically, it was Alexis because of the calf kicks. I was unstable on my legs. My body was refusing to do the things that I wanted to do."

Needless to say, Eersel is looking to make a statement in his rematch with Nicolas, take back his gold, and prove that he was always the better fighter.

Regian Eersel runs it back with Alexis Nicolas for ONE Championship gold at ONE Fight Night 25 on Prime Video

'The Immortal' Regian Eersel is looking to take back his ONE lightweight kickboxing world title when he meets 'Barboza' Alexis Nicolas in the ONE Championship ring.

The two lock horns at ONE Fight Night 25: Nicolas vs. Eersel II, which broadcasts live from the historic Lumpinee Stadium in Bangkok, Thailand on Friday, Oct. 4.

Fans in the United States and Canada can catch all the action live and absolutely free on Amazon Prime Video. Stay tuned to Sportskeeda MMA for all the latest news and updates surrounding the event.