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Muay Thai Sisters Wondergirl, Supergirl Open To Family Battle

Some matchups make for interesting topics of discussion and have no chance of coming to fruition.

Many fans would assume that’s the case with siblings, but rising Muay Thai stars Wondergirl Fairtex and Supergirl Jaroonsak Muaythai have not closed the door on a potential sister-versus-sister showdown in ONE Championship.

Muay Thai fighter Wondergirl Fairtex kicks Jackie Buntan

The hard-hitting duo were both taught by their father, Jaroon Chanthasri, in Bangkok, Thailand, where Supergirl is still based.

Elder sibling Wondergirl later relocated to Pattaya to represent the famous Fairtex Training Center, but the siblings remain close.

Still, when she was asked about facing her younger sister in the Circle, Wondergirl did not write it off.

“Many people ask me about that. I used to talk with my sister about it and she said, ‘Oh good, we’ll both get paid!’” the 22-year-old joked.

Supergirl Jaroonsak Muaythai unloads a cross

Teenage Supergirl confirmed the possibility – and seemed even more open to the idea.

“It would definitely feel strange, but it’s just a sport. It’s no different than teammates from the same camp fighting each other,” she said.

“Fans are the most important thing to me. What will they think if we held back? But once the fight ends, we’re sisters again.”



Wondergirl and Supergirl have spent thousands of hours training and sparring together. They are intimately acquainted and cut from the same cloth, which could make for a spectacular battle if they employ that knowledge against one another.

And given that she would face a close blood relative, Wondergirl was also asked about the possibility of going up against her famed teammate and former two-sport ONE World Champion, Stamp Fairtex.

While she was non-committal, Wondergirl once again left the door open.

“For me, Stamp is my idol. It’s hard. She is smaller than me, but [could we] fight? Yeah, maybe,” she offered.

Photos from Stamp Fairtex and Alyona Rassohyna's MMA fight at ONE: UNBREAKABLE III on 5 February 2021

Wondergirl’s and Supergirl’s openness to do battle is unlikely to be universal among ONE Championship siblings — it’s hard to imagine the Lees, Petrosyans, Catalans, or other families agreeing to square off in the Circle.

But still, this potential matchup would offer a unique storyline for martial arts fans around the world. 

Read more: Building The Perfect Muay Thai Fighter From ONE Superstars

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