Is marijuana a performance enhancing drug? It may be for Mike Tyson who said that he smoked a fat joint before his recent eight round exhibition bout with Roy Jones Jr. The 54-year-old boxing legend and current cannabis entrepreneur told the press he smokes weed every day and added, “It’s just who I am!” When asked if he got high prior to entering the ring for the first time in 15 years, Tyson said, “Absolutely, yes!” Tyson added that he also smoked another joint right after the fight and before coming out to talk to the reporters.