Nick Diaz defeated Frank Shamrock via technical knockout at Strikeforce: “Shamrock vs. Diaz” from the HP Pavilion on Saturday, April 11 in San Jose, California.

And now the California State Athletic Commission Assistant Executive Officer Bill Douglas has confirmed that he did it without the assistance of marijuana or any type of performance enhancing drugs, according to MMAWeekly.

Here’s a snip:

“Diaz was fine. The test went through a full battery which [also] checks for cleansing agents.”

Diaz tested positive for marijuana after his surprising and sensational win over PRIDE FC 160-pound champion Takanori Gomi at PRIDE 33 back on February 24, 2007.

That win was quickly overturned by the Nevada State Athletic Commission (NSAC) and Diaz was suspended for six months. Because of that suspension, Diaz was unable to secure a corner’s license for his brother Nate’s fight against Manny Gamburyan at The Ultimate Fighter Finale 5.

Prior to the Shamrock fight, Diaz had claimed he was able to beat drug tests with the help of herbal cleansers and ten gallons of water per day. Were those claims just vintage Diaz? Or does the man with the medical marijuana card really know how to cheat the system?

I didn't realize marijuana was such a performance enhancing drug. To me, it seems kinda dumb to test for it. I'd much rather the Commission bother with stuff that matters.

Diaz is still a supreme idiot for flaunting it, though. Why not just put a target on your back, there, Nick?

BTW, this matter was cleared up before the fight even began. Good results from a mandatory pre-fight test was a condition set by Frank.

yeah the day a fighter wins a fight because he smoked a spliff before the fight I will actually be even more impressed then if he didnt smoke

hold on here marijuana is performance enhancing drug... hmm i have been noticing i have been getting stronger pass few days...come on man that's bull shit no need to test for that..

yeah I was just told that since I stopped using weed I am much more boring and more nervous, shame its illegal

but I do think a real athlete shouldnt use any drugs including alcohol, no matter if its legal or not, simply because it wont limit his abilities or enhance them in any way

Pure fighting!