Back-to-back defeats have a way of stripping a fighter down to what they are made of. For Yu Yau Pui, they revealed something she was not expecting — and she has spent every session since fixing it.
The 33-year-old Hong Kong southpaw faces Thai atomweight Anna “Supergirl” Jaroonsak at ONE Fight Night 41 on Prime Video on Friday, March 13, at Lumpinee Stadium in Bangkok, Thailand. It is the fight that defines where her career goes from here. Yu entered ONE Championship in 2023 with a blistering five-fight winning streak, announcing herself as a genuine contender. Then losses to Amy Pirnie and Martyna Dominczak brought that momentum to an abrupt halt. The knockdown against Pirnie, in particular, forced her to confront a fundamental gap in her game.

“Maybe I was rushing too much and overlooked a lot of things,” she admitted. “For example, I didn’t protect myself properly. That’s why I got knocked out [against Amy Pirnie].”
The introspection did not stop there. Yu recognized that over-reliance on her punching had made her readable, and she has committed this camp to becoming a threat across multiple weapons.
“Besides my punches, I need to improve my other weapons, like my kicks, to become a more multi-dimensional fighter instead of relying only on my punches. I hope this time I can truly show how much my style has improved.”
Standing across from her is Jaroonsak — a 40-7 professional with three ONE victories and a reputation built on spear-like knees and heavy hands. Yu has studied her opponent carefully and has a clear picture of what makes the Thai dangerous. Supergirl’s height and reach give her the ability to land strikes from distances that neutralize shorter opponents, and those long-range knees are a weapon that demands respect.

The KF 1 representative has not let that respect shade into fear. Her answer to Jaroonsak’s physical advantages is a calculated one — patience, conditioning, and the willingness to hunt for openings when the moment arrives.
The Hong Kong fighter explained her blueprint plainly:
“I believe my endurance will be better than hers, so I’ll be waiting to see if there’s a loophole. When the time is right, I’ll get inside and break her down.”
The personal stakes extend beyond the win column. Yu has watched peers signed in the same year — Phetjeeja, Rambolek, Nabil Anane — climb to championship heights while she has stumbled. That awareness burns, and it has sharpened her focus heading into March 13.
“I can’t wait to showcase how much I have improved this time. I’m a little bit nervous. I’ve put in a lot of effort, and I hope I can really do my best inside the ring.”
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