The UFC confirmed in an official statement they had been notified of a potential breach after his knockout win.
White took questions on the matter from reporters at The Ultimate Fighter Gym in Las Vegas on Tuesday and was in a downbeat mood when asked about Jones' potential legacy.
"If it ends up getting two or three (drug violations), it might be the end of his career," he said, per Steven Marrocco and John Morgan of MMAjunkie. "So to talk about his legacy, it's probably the end of his career."
Here's a listen to what White had to say in full, per MMAjunkie:
For @danawhite, news of @JonnyBones' failed UFC 214 drug test is simply "brutal." More: https://t.co/1kt4E66CIO https://t.co/aqFff3W1hl2017-8-23 05:38:49
As noted in the report, Jones, who won the UFC light heavyweight title with his third-round stoppage of Cormier, may be set for a four-year suspension as a result of this potential breach.
The man he beat at UFC 214 provided his own statement after the news broke, per ESPN's Brett Okamoto:
Brett Okamoto @bokamotoESPN
Statement from Daniel Cormier's camp. https://t.co/urBizfKvr72017-8-23 02:38:40
Some have questioned the potential violation, though. Frank Lester, who is a coach and team-mate at the Jackson Wink Academy where Jones trains, posted on Facebook that he feels as though the fighter has been "set up" (Warning: Some language NSFW):
The man known as Bones is temporarily suspended based on this result and could receive additional punishment from the California State Athletic Commission.
Jones' bout with Cormier at UFC 214 was a rematch of their clash in 2015, which the former won via unanimous decision. The pair were initially scheduled to fight again at UFC 200 in July 2016, but the bout was pulled after Jones failed an out-of-competition test.
Jones is considered by many to be the most gifted MMA competitor in history, with the win over Cormier at UFC 214 taking his overall record to 23 wins and one loss from 24 professional outings.