UFC: Nate Diaz accepts anti-doping warning after McGregor rematch

Nate Diaz
Diaz (pictured) has twice fought McGregor, winning the first contest before losing the second

UFC fighter Nate Diaz has accepted a warning from the US Anti-Doping Agency (Usada) for his use of prohibited substance Cannabidiol.

The American fighter admitted using the legal high after his loss to Ireland's Conor McGregor in August.

Cannabidiol, a compound found in cannabis, is known anecdotally for its medicinal benefits for people with severe epilepsy.

The 31-year-old lost the UFC 202 fight by a majority decision.

Usada concluded that Diaz mistakenly believed that the in-competition period ended after he provided a post-bout sample.

The 'in-competition' urine and blood samples provided by Diaz before his admitted use were analyzed and reported as negative for all prohibited substances.

The fight at UFC 202 was the second contest between the two, with Diaz beating McGregor via second round submission at UFC 196.

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