ONE Championship has parted ways with several fighters following recent roster updates, with Thai legend Sitthichai among the most notable names confirmed to be leaving the promotion, Nick Atkin's reports.
The 33-year-old veteran, widely regarded as one of the greatest kickboxers of his generation, took to social media to share a message reflecting on his time with ONE.
"Thank you ONE Championship for giving me the opportunity and the grand stage to showcase my skills throughout these years.
Every fight has been a valuable experience — both victories and defeats have made me stronger. Along the way, I’ve met incredible friends, athletes, and staff who have become like family.
These memories will stay with me forever. Thank you to all the fans who have always supported and cheered for me.
My journey as a fighter does not end here. I’m ready to take the next step and continue writing the next chapter of my career.
Thank you ONE Championship 🙏"
Sitthichai exits ONE with a 6–6 record under the promotion, facing many of the sport’s elite throughout his run. While his next destination has yet to be revealed, the former GLORY lightweight champion made it clear that his fighting career is far from over.
Other recent roster departures include former strawweight Muay Thai champion Smilla Sundell, Alex Roberts, Celest Hansen, Shamil Adukhov, and former MMA bantamweight title challenger Kwon Won Il.
