At Pride 33 Nick Diaz (15-6 MMA, 6-4 UFC) literally shocked nearly anyone who follows MMA when he beat Takanori Gomi at PRIDE Fighting Championships’ Pride 33: The Second Coming event in February. Now, according to reports, Diaz flunked a required drug test after the win testing positive for marijuana. All other fighters passed the tests.
The UFC vet did not test positive for any banned substances such as steroids. Marijuana is tested for because it can make the fighter dazed which can be dangerous but more importantly it can lower the fighters perception of pain allowing them to more freely trade punches and putting them in danger during submission attempts.
Other fighters who tested positive for marijuana use recently have been banned from the sport for 6 months and that may very well be the same suspension Diaz receives. His notable UFC fights include wins against Josh Neer and Gleison Tibau and losses to Sean Sherk, Diego Sanchez, and Joe Riggs.
Diaz left the UFC for contracts with PRIDE and EliteXC. His win is in limbo and it may be ruled a no contest or left as a win given that Diaz only tested positive for Marijuana and not a performance enhancing drug.