The rumors of Nick Diaz’ failing his UFC 143 drug test due to marijuana metabolites found in his PED test have proven to be true.

Nevada State Athletic Commission executive director, Keith Kizer has released (via email) the verification that Diaz is the sole fighter out of 18 to fail the “performance enhancing drug” testing process. The news comes shortly after Diaz suffered a five-round controversial decision to now interim-champ and former WEC champion Carlos Condit.

This is not the first time Diaz has failed a test for marijuana, as back in 2007 Diaz failed following a  a victory over Takanori Gomi in Pride FC promotions.

The penalty for the failed drug test will now likely be a one-year suspension of his fighting license and 40% of his 200k show purse.

Originally in planning, UFC president Dana White had tweeted that a rematch between Condit and Diaz was in works. Now with Diaz on the shelf for 12-months, champ Georges St-Pierre will have likely have made his return prior to Diaz’.