Britain’s Charlie Guest will step into ONE Championship on June 27, facing Sam Fitzgerald on Sky Sports. The former ISKA world champion and WBC European titleholder replaces Bampara Kouyate after the latter withdrew. Fitzgerald, a WBC New Zealand super‑welterweight champ, gives Guest a high‑profile first fight on the promotion’s main card.

Guest stands six feet tall and brings a technical, powerful stand‑up arsenal that has earned him titles across Europe. His debut marks the start of a title chase that could make him the next Englishman to lift a ONE world belt. The fight also pits him against a seasoned international opponent, raising the event’s stakes.

Guest said, “This is something I’ve worked towards my entire life, and I truly believe this is only the beginning. I can’t wait to show the world exactly what I’m capable of.” He thanked his team, sponsors and family before a June 27 showdown that could redefine his career.

ONE Championship, known for blending striking and grappling, has become a global platform for fighters seeking world titles. Guest’s entry aligns with the promotion’s strategy to spotlight British talent. A win would not only secure a title but also elevate his market value and cement his status among the sport’s elite.