Nick Diaz isn't going to accept his latest positive drug-test result without a fight.
Stockton, Calif.'s favorite son tested positive for marijuana metabolites after his unanimous-decision loss to Anderson Silva in the main event of UFC 183 on Jan. 31.
But Diaz, who is under temporary suspension by the Nevada Athletic Commission and recently received a continuance on his hearing in front of the board, has engaged a law firm in his battle against the results.
MMAFighting.com's Ariel Helwani reported on Wednesday's edition of UFC Tonight that Diaz has retained the New York-based firm of Seham, Seham, Meltz & Petersen LLP to investigate the test results.
According to Diaz's manager, Lloyd Pierson, Diaz believes there were "irregularities" in Diaz's results.
The firm representing Diaz specializes in drug-testing matters.
While many consider sanctions against marijuana outdated and excessive, the drug's use still carries serious consequences for fighters. The UFC 183 test marked the third time Diaz had tested positive for the drug in Nevada; he was suspended for a year following his last failure, following a 2012 loss to Carlos Condit in Las Vegas.