LAS VEGAS (AP) – Light heavyweight champion Jon Jones has been notified of another potential violation of the UFC’s anti-doping policy.

ANAHEIM, CA – JULY 29: Jon Jones reacts to defeating Daniel Cormier in the Light Heavyweight title bout during UFC 214 at Honda Center on July 29, 2017 in Anaheim, California. (Photo by Sean M. Haffey/Getty Images)

The UFC announced the potential violation Tuesday night for Jones, widely considered the top pound-for-pound fighter in mixed martial arts.

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Jones’ potential violation stems from a sample collected after his weigh-in July 28 for his title fight against Daniel Cormier at UFC 214 in Anaheim, California. Jones won the fight and reclaimed his 205-pound belt after sitting out the previous year for a failed doping test.

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Jones was stripped of his belt in 2015 after being involved in a hit-and-run accident. He was scheduled to fight Cormier for the title in July 2016, but was pulled from the fight for what he claimed was a failed test due to a sexual enhancement pill.

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