How Riley went from KSI's trainer to world-title dream

Viddal Riley, a 29-year-old boxer from London, has risen from obscurity to the brink of a world-title shot, thanks in part to his work with social media star KSI. Riley, who has won all 14 of his professional fights, including seven by knockout, is set to defend his European cruiserweight title against Seydi Coupe at Wembley Arena on Saturday.

His journey began when he started training KSI for his fights against Joe Weller and Logan Paul. Although Riley initially aimed to be known for his own skills rather than simply as KSI's trainer, the influencer tag has remained a part of his identity. Riley's boxing career started at a young age, with him becoming a national champion by age 11 and collecting numerous amateur titles.

He later represented Team GB and captained England. After training KSI, Riley signed with Mayweather Promotions, where he continued to develop his skills and build his own audience on YouTube. In December 2025, he joined Boxxer, where he won English and British titles. Riley's ultimate goal is to secure a world-title opportunity, currently holding an IBF mandatory position against New Zealand's David Nyika.

The IBF's recent legal dispute with former champion Jai Opetaia has delayed that opportunity, but Riley remains focused on Saturday's fight against Coupe.