Former NBA commissioner David Stern says he thinks the league should remove marijuana from its list of banned substances.

In an interview from a documentary for Uninterrupted, Stern talked with ex-NBA player Al Harrington, who has become a marijuana entrepreneur since he retired in 2015.

"I'm now at the point where, personally, I think (marijuana) probably should be removed from the ban list," Stern said. "I think there is universal agreement that marijuana for medical purposes should be completely legal."

Stern, 75, was commissioner of the NBA from 1984 to 2014 and oversaw a boom in the league's popularity.

During his tenure, he instituted strict policies regarding marijuana use.