High Times Magazine has an article about the influence of marijuana in the NBA.
Here is an excerpt:
But despite the NBA’s official disapproval, the use of pot hasn’t seemed to decrease. In 2001, one of the toughest players in hoops history, power forward Charles Oakley, claimed that 50 to 60 percent of players smoked weed. A Rocky Mountain News survey released in 2005 reported that NBA players estimated on average that one out of three of their colleagues—roughly 30 percent—smoked pot. In 2008, Josh Howard of the Dallas Mavericks caused a stir when he admitted on ESPN Radio that he smokes marijuana during the off-season and that “everybody in the media world and in the sports world knows that NBA players do smoke marijuana.” Asked how many, Howard offered the rather high figure of 70 percent, while his Mavericks teammate, Jason Terry, thought that only 5 percent of players got high—a wildly unrealistic claim.
As for the argument that only fringe players use pot and not the superstars, what about the aforementioned LeBron James, who has acknowledged that he smoked pot during his high-school years? Aside from Kobe Bryant, you don’t get much bigger than King James.