On March 16, 2018, Rise president Takashi Ito, former K-1 fighter Hiroya and his lawyer, accused K-1 Japan Group's exclusive contract, illegal based on the competition law. Hiroya's lawyer told the media, that the way K-1's contract work makes you not fight for a year for your contract to expire. Every fight you make with the organization, extends your contract for another year from your last fight and the only way to get out of the contract is not get paid for a year. Hiroya cites this as the reason why Segawa could not fight Nasukawa as he knows Segawa as a friend and will not back down to a fight.武尊、天心戦へ「僕は戦えると信じている」発表なく「申し訳ないし悔しい」 デイリースポーツ 2021年12月11日。
