Vitor Belfort, who has been under fire for his use of testosterone replacement therapy, told Fox Sports 1 early Friday that he had opted to pull out of his planned May 24 middleweight title fight with champion Chris Weidman that had been set to be the main event of UFC 173 at the MGM Grand Garden in Las Vegas. Former light heavyweight champion Lyoto Machida will replace Belfort in the title fight. In his statement to Fox Sports 1, Belfort said: The Nevada State Athletic Commission recently altered its policy and will no longer permit testosterone use exemptions and will not permit a TRT program. Other jurisdictions may follow suit. I'm going to drop my TRT program and compete in MMA without it. Given the time constraints between now and my proposed next bout in May, I have determined not to apply for a license to fight in Nevada at this time. Yahoo.com
