FiveOuncesOfPain.com was notified by the Nevada State Athletic Commission on Monday evening that six fighters scheduled to compete at UFC 91on Nov. 15 in Las Vegas were subjected to out-of-competition screenings for steroids and street drugs.
The fighters tested were UFC heavyweight champion Randy Couture, Brock Lesnar, Amir Sadollah, Nick Catone, Aaron Riley, and Jorge Gurgel.
According to NSAC, all six fighters passed their pre-fight screenings.
Lesnar and Couture were chosen because they both are scheduled to compete each other in the main event while the remaining four were chosen at random. Both main event competitors will be subject to additional testing the day prior and immediately after their fight while Sadollah, Catone, Riley, and Gurgel could be chosen at random to be tested again as well.