Diaz is also a professional boxer and fights in the Super Middleweight weight class. He made his professional debut in April 2005 against Alfonso Rocha at the Radisson Hotel in Sacramento, California.boxer: Nick Diaz. Boxrec.com. Retrieved on May 5, 2012. Diaz was victorious, winning by unanimous decision after four rounds. He has not fought since. Nick and Nate Diaz were trained by former WBA and WBC World Champion Luisito Espinosa and trained with Jason "Gumby" Schrumpf. He also trains in sambo with former UFC fighter Val Ignatov.
