function not found The Nevada State Athletic Commission released the results of the UFC 162: Silva vs. Weidman fighter drug tests on Friday revealing all fighters tested clean. Nevada State Athletic Commission Executive Director Keith Kizer informed MMAWeekly.com that all 22 fighters that fought on the July 6 fight card at the MGM Grand Garden Arena in Las Vegas were tested, and all returned negative test results. Chris Weidman became the new UFC middleweight champion in the main event of the fight card by knocking out long-time titleholder Anderson Silva early in the second round.