The Nevada State Athletic Commission (NSAC) today confirmed that 12 of the 20 competitors who were tested for illegal/banned substances after competing at UFC 106: "Ortiz vs. Griffin 2" on Nov. 21 have all passed with flying colors.

Former UFC light heavyweight champions Forrest Griffin and Tito Ortiz as well as Josh Koscheck, Anthony Johnson, Amir Sadollah, Phil Baroni, Antonio Rogerio Nogueria, Ben Saunders, Paulo Thiago, Kendall Grove, Brian Foster and Caol Uno were all screened for performance enhancers such as steroids and drugs of abuse like cocaine and marijuana, among others.

Results from these battery of tests all returned negative.

The fighters mentioned above were randomly selected. However, athletic commissions typically test the main event participants and fight night winners, as well as those who have failed tests in the past.

The UFC dished out $1,021,000 in fighter salaries for the pay-per-view event from the Mandalay Bay Events Center in Las Vegas and another $70,000 in additional bonus money for the three participants who delivered outstanding performances.

UFC 106 featured a main event rematch between former UFC light heavyweight champions Tito Ortiz and Forrest Griffin, which ended in a split decision in favor of Griffin. The Ultimate Fighter (TUF) season one winner mentioned in his post-fight remarks that he’s willing to face Ortiz in a rubber match at a later date.

Other main card fights included Josh Koscheck picking up $140,000 in bonus checks for "Fight of the Night" and "Submission of the Night" in his win over welterweight slugger Anthony "Rumble" Johnson, while Antonio Rogerio Nogueira earned "Knockout of the Night" in his promotional debut for his first-round win over Luis Cane.

For complete results and coverage of "Ortiz vs. Griffin 2" click here and here.