Former UFC champion Vitor Belfort and former Strikeforce champion Luke Rockhold square off in front of Arena Jaragua where they will fight at UFC on FX 8 on May 18th. This should be a very exciting fight and a great test for the former SF star in Rockhold. A big story behind this fight will be the use of testosterone by Vitor. Since this fight is in Brazil the Nevada State Athletic Commission does not have juristidction over testing. It came out in Belfort’s last fight vs Michael Bisping, a fight that was also in Brazil, that he was on TRT. Since Belfort has previously failed a drug test for steroids he should not be eligible for a TRT exemption. If Vitor takes TRT in future fights he should have to disclose that information, if not to the fans at the very least to his opponent.