Jon Jones proclaimed his innocence in using an illegal substance on Thursday and choked up while talking about how being cut from UFC 200 has impacted him.
"The whole situation really sucks," Jones said. "It really hurts a lot. Supposedly they found something in one of my samples that I have no clue what it is. I don't even know how to pronounce it. I have been taking the same supplements the majority of my career."
Jones was yanked from Saturday's UFC 200 headliner against Daniel Cormier on Wednesday when the organisation was informed he potentially violation in a USADA drug test administered on June 16.
"I want to apologise to Daniel Cormier," Jones said. "I know that this means a lot to him. The fight meant a lot to me, and the fight's not happening. I just really wanted to apologize to everyone sincerely. I really don't know what to say."
Jones reiterated how much he is against performance enhancing drugs and said he's "hurt" by being labelled as a cheater. However, he insists that he will return to the sport.
His B sample will be tested on Thursday.
"I believe something good will come from this," Jones said through tears. "It's just hard to see it."
It's the third out of four times Jones and Cormier had been slated to match up where the event had fallen though.
The first time was UFC 178, but Jones had to back out because of a leg injury. The second time Jones defeated Cormier with a unanimous decision at UFC 182.
Jones was then stripped of his title after a 2015 hit-and-run incident, opening the door for Cormier to take the belt over Anthony Johnson. When Jones was reinstated by the MMA organisation several months ago, he and Cormier were supposed to fight in UFC 197, but Cormier had to pull out because of a shin injury.
"This is devastating for Daniel Cormier," UFC president Dana White said in a hastily arranged news conference late on Wednesday. "Not only mentally and physically, he just went through a camp, and financially, this pay-per-view is trending to be massive, and he shares in that revenue. He's devastated."
For now, Cormier has been left without an opponent, leaving UFC 200 to be headlined by the returning Brock Lesnar and Mark Hunt.