Strikeforce: "Barnett vs. Kharitonov" drug test results are in from the Ohio Athletic Commission, who today confirmed that all eight fighters tested for illegal/banned substances after competing at the U.S. Bank Arena on Sept. 10, have all passed with flying colors.

While each competitor was screened (via urine test) for performance enhancers such as steroids and drugs of abuse like cocaine and marijuana, among others, select tournament participants were also administered blood tests to try and pinch anyone looking to sneak their way down the yellow brick road.

Results from these battery of tests all returned negative.

The Strikeforce heavyweight grand prix may have lost most of its luster thanks to losing both its big money stars, Fedor Emelianenko and Alistair Overeem, Josh Barnett did what he could to keep the party rocking by submitting Sergei Kharitonov in the first round to advance to the finals.

"Barnett vs. Khartinovo" also featured the other semifinal grand prix bout with Daniel Cormier shocking the world while simultaneously inserting himself as a favorite in the finals by destroying Antonio Silva.

Also on the card, Luke Rockhold realized his dream of winning mixed martial arts gold when he drug "Jacare" through the mud and earned a five-round unanimous decision victory over Ronaldo Souza to become the new Strikeforce middleweight champion.

In slightly sadder news, the event only garnered 274,000 viewers on Showtime, which was just 39,000 more viewers than Bellator 49 garnered on MTV2 on the very same evening.

For complete results and coverage of Strikeforce: "Barnett vs. Kharitonov" click here and here.