'I don't know what to think anymore'

UFC lightweight Daniel Cormier has responded to news of Jon Jones' second failed drug test.

Cormier, who relinquished his UFC title to Jones on July 29 at UFC 214, told MMAFighting.com he was still trying to process the news.

"It's hard to find words to describe how I'm feeling right now," Cormier said.

"I'm disappointed to hear the news. It's very emotional.

"In my mind, on July 29, I competed and I lost. I thought Jon Jones was the better man that day.

"I don't know what to think anymore. I can't believe we are going through all of this again. We will see what happens next."

Cormier will now likely retrieve his light heavyweight champion belt, pending possible re-checks and appeals from Jones.

It's not the first time Jones has let Cormier down due to failed drug tests.

He tested positive for clomiphene and letrozol ahead of the pair's title fight at UFC 200 in 2016, leaving Cormier completely shattered.

Watch in the video above.

Jones revealed during his previous doping ban that he would get "blackout drunk" in the week before fights.

His manager Malki Kawa has now given an update on Jones' condition, describing his client as "crushed" following the news.

“We are all at a complete loss for words right now,” Kawa said.

“Jon, his trainers, his nutritionists and his entire camp have worked tirelessly and meticulously the past 12 months to avoid this exact situation.

"We are having the samples tested again to determine the validity or source of contamination. Jon is crushed by this news and we are doing whatever we can as a team, to support him.”

Remarkably, Jones was incredibly outspoken about how he'd changed his ways in the lead up to the fight, even tweeting this image in the lead up to his title fight with Cormier.