Jake Paul wanted Ben Askren to sign a contract which handed him a $100,000 fine if he used MMA moves during their boxing clash.
Paul has now fought five times as a professional and is set to do battle with UFC legend Anderson Silva in his sixth bout on Saturday night. It has been an unorthodox route in the boxing world for Paul who began with a victory over fellow YouTuber AnEson Gib before defeating ex-basketball player Nate Robinson.
He then stepped up the competition in April last year by knocking out retired Askren in one round, who had already hung up his gloves and been asked to take part in one last fight. The former three-fight UFC star has now claimed the promoter of the event, Triller, had requested the addition of the clause to make the YouTube star feel secure about the contest.