Jon Jones and Daniel Cormier's beef started backstage at UFC 121 in 2010.
Both fighters engaged in a long-standing war of words on social media.
Jones' positive drug tests and legal issues have added fuel to the fire.
Cormier emerged as the light heavyweight champion during Jones' suspension.
Their rematch at UFC 200 was called off due to Jones' doping violation.
When did the beef between Jon Jones and Daniel Cormier start?
—The beef started backstage at UFC 121 in 2010.
What were some of the notable social media battles between Jones and Cormier?
—Both fighters engaged in a long-standing war of words on social media.
What legal issues did Jones face during the beef?
—Jones had positive drug tests and legal issues that added fuel to the fire.
Who emerged as the light heavyweight champion during Jones' suspension?
—Cormier emerged as the light heavyweight champion during Jones' suspension.
Why was their rematch at UFC 200 called off?
—Their rematch was called off due to Jones' doping violation.
00:00The epic beef between Jon Jones and Daniel Cormier began backstage at UFC 121 in 2010.
02:20Both fighters engaged in a long-standing war of words on social media.
06:49Jones' positive drug tests and legal issues added fuel to the fire.
07:57Cormier emerged as the light heavyweight champion during Jones' suspension.
09:17Their rematch at UFC 200 was called off due to Jones' doping violation.
