T.J. Dillashaw has relinquished his UFC bantamweight championship after he was informed by the New York State Athletic Commission (NYSAC) and the United States Anti-Doping Association (USADA) of an “adverse finding” from his drug test at UFC Brooklyn in January.

Dillashaw lost in his attempt to add the UFC flyweight belt to his name, suffering a first-round TKO defeat to champion Henry Cejudo at UFC Brooklyn.

Dillashaw revealed his news on Instagram, before saying he had given up his title out of “fairness and respect” for the rest of his division until his issue is resolved.

The post read:

“To all my fans, I wanted to be the first one to let you know that USADA and the NYSAC have informed me of an adverse finding in a test taken from my last fight. While words can’t even begin to express how disappointed I am at this time, please know that I’m working with my team to understand what has occurred and how to resolve this situation as quickly as possible.

“Out of fairness and respect to the rest of the my division, I’ve informed the UFC that I’ll be voluntarily relinquishing my title while I deal with this matter. I want to thank all of you in advance.”

ESPN’s Ariel Helwani said Dillashaw has been suspended for a year by the NYSAC – and that USADA could issue their own lengthy suspension – though it’s unclear what he tested positive for.

It’s expected a formal statement will be issued today.