The UFC light-heavyweight champ is scheduled to defend his title against Glover Teixeira at UFC 172, but wanted to take precautionary measures and ensure that he was not facing a fighter "on steroids," so he formally requested that the UFC and the Maryland Athletic Commission test both of them ahead of the April 26 PPV.
"I just thought I would have Glover tested because he's not the youngest fighter and everyone raves about how strong he is. " Jones told ESPN.com's Brent Okamoto. "Some fighters, you just know they're not on anything just by looking at them. Part of (Teixeira's) mystique is his amazing physical strength and I just questioned it. I have no reason to think he's on steroids but I do wonder how someone can be so strong."
Jones personally approached UFC President Dana White regarding the matter and was informed that he should formally request the drug test from the athletic commission.
"I called Dana White and said, 'Hey, I want Glover to take steroid tests for this fight,'" Jones said. "He asked me, "What, you think he's on steroids?' I told him I don't know and I have no reason to accuse him of anything but I would like to be sure."
The decision to test the main event combatants was taken by the athletic commission, yet the costs related to the drug testing was covered by the UFC.
Jones also revealed that he would not necessarily be requesting anymore out-of-competition drug tests in the future.
UFC 172 is scheduled to take place April 26, at the Baltimore Arena in Baltimore, Maryland.