All of the fighters from UFC 84 that were drug tested have returned negative results, according to Keith Kizer, executive director of the Nevada State Athletic Commission.
The 15 fighters tested at the event were: Sean Sherk, B.J. Penn, Keith Jardine, Wanderlei Silva, Tito Ortiz, Lyoto Machida, Rousimar Palhares, Ivan Salaverry, Rameau Thierry Sokoudjou, Rich Clementi, Yoshiyuki Yoshida, Shane Carwin, Thiago Silva, Goran Reljic and Dong Hyun Kim.
The fighters were tested both for drugs of abuse (recreational drugs such as marijuana, cocaine, etc.) and performance enhancing substances (such as steroids).
Penn, Sherk and Ortiz were also tested in the weeks prior to the event as part of the NSAC's new out of competition random drug testing program. As previously reported, all three passed the out of competition drug tests.