The UFC announced Friday that two-time UFC heavyweight champion Frank Mir has been flagged for a "potential Anti-Doping Policy violation" stemming from an in-competition drug test collected by the United States Anti-Doping Agency (USADA) on the date of his recent bout at UFC Fight Night 85.
Mir suffered a first-round knockout at the hands of Mark Hunt on March 20 at UFC Fight Night 85 in Brisbane, Australia.
If the USADA violation proves to be accurate, it would mark the first drug testing failure of Mir's 16-year UFC career.
The UFC's statement can be read below.