USADA Announces Jon Jones ‘B’ Sample Also Positive for Banned Substance

As expected, Jon Jones “B” sample did not clear the UFC light heavyweight’s name.

U.S. Anti Doping Agency (USADA) spokesman Ryan Madden revealed on Friday that the “B” sample confirmed the findings of the “A” sample, which was that Jones tested positive for a banned substance stemming from an out-of-competition drug test on June 16.

It is still unclear what substances or substances cause the positive test, as Jones and his team elected not to reveal that information during a news conference on Thursday where the fighter denied taking performance enhancing drugs.

"The whole situation really sucks. It really sucks, really hurts a lot. They found something in one of my samples that I have no clue what it is,” Jones said. “I don't even know how to pronounce it. I've been taking the same supplements the majority of my career.”

USADA is not allowed to release the substance unless Jones himself discusses it. Jones is facing a potential two-year suspension but will still be able to go through an appeals process before any sanctions are determined.

Jones was scheduled to face Daniel Cormier in a light heavyweight title rematch at UFC 200on Saturday. The bout was scrapped late Wednesday when news of his potential anti-doping violation was released. The promotion scrambled to salvage the card, moving a bantamweight clash between Miesha Tate and Amanda Nunes to the main event and booking Anderson Silva to face Cormier on short notice.