Liam Harrison's remarkable career can be encapsulated in a single round - his electrifying clash with Muangthai P.K. Saenchai. Four years ago, in Singapore, Harrison, the pioneering figure in British Muay Thai, faced off against Muangthai. The first round saw Muangthai deliver two crushing knockdowns, but Harrison's resilience and determination led to an extraordinary comeback.

A devastating left hook sent Muangthai crashing into the cage wall, followed by another intense exchange that ended with Muangthai being knocked out. This fight, which took place during the later stages of Harrison's career in ONE Championship, showcased his unwavering spirit. "Even though I was past my prime, I still managed to demonstrate my capabilities to a global audience, picking myself up from the floor twice," Harrison shared with Sky Sports. Harrison, who hails from Harehills in Leeds, has set a new standard for Muay Thai kickboxers from the UK.

He turned professional as a teenager and has been instrumental in spreading the word about British Muay Thai, believing that the UK is now one of the top fighting nations outside of Thailand. Harrison paved the way for UK fighters to travel to Thailand for competitions and training, a journey that began after a humbling experience early in his career.

At 18, Harrison had 29 professional fights under his belt, with 29 wins, but a bout against a top Thai fighter served as a wake-up call. The Thai fighter's resilience and skill left Harrison wondering how he could compete at that level, prompting him to travel to Thailand to train and fight. Harrison spent six months in Thailand, where he was pushed to his limits in training, but eventually, he began to hold his own. This experience, combined with fighting regularly and training alongside elite fighters, helped him grow as a fighter.

Harrison has had many notable moments in his career, including a rematch against Anuwat Kaewsamrit, whom he defeated on points in England. He also suffered a devastating loss to Nong-O Gaiyanghadao, which left him with a badly damaged knee. Despite his bravery, Harrison's range and accuracy deserted him in his last ONE Championship bout against Seksan Or Kwanmuang. Harrison returned to the UK for a farewell contest, winning a WBC Diamond belt against Isaac Araya, but has now retired at 40 due to his knee injury.

"My Muay Thai career is over. My knee is severely damaged. The Nong-O fight essentially ended my career," he said.

"I can no longer withstand the demands of a fight camp. It's not the fights that have taken a toll on me, but the way I train - always giving it my all." Harrison's legacy is undeniable, and he reflected on his achievements, saying, "If someone had told me 27 years ago that I would accomplish all that I have, I wouldn't have believed it."