Brock Lesnar tested positive for anti-estrogen; Lesnar, Jon Jones won’t face UFC fine

Brock Lesnar and Jon Jones share something more in common than just their former billing as UFC 200 headliners.

The banned substance Lesnar tested positive for in in-competition and out-of-competition drug tests in relation to his UFC 200 fight with Mark Hunt was hydroxy-clomiphene, a source with knowledge of the test result confirmed with MMA Fighting on Friday. ESPN and the LA Times were the first to report the news earlier this week.

Jones also tested positive for clomiphene, an anti-estrogen agent, as well as Letrozole, an aromatase inhibitor, before what would have been a main event fight with Daniel Cormier at UFC 200. Jones was pulled from the bout three days before the card after his sample taken June 16 came back. Lesnar’s sample taken June 28 didn’t come back until after the fight.

Both Lesnar and Jones are facing sanctions from USADA, the body that collected the samples, and the Nevada Athletic Commission, because of the sample collections’ proximity to UFC 200, which took place in Las Vegas on July 9.

After an adjudication process, the NAC has the power to suspend and fine both Jones and Lesnar. …

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