The NBA is investigating Jontay Porter following multiple instances of betting irregularities over the past few months with Adam Silver saying a permanent ban is possible.

"I have an enormous range of discipline available to me," Silver said at a hotel in midtown Manhattan on Wednesday, after the league's annual Board of Governors meetings at the end of the regular season were conducted over the prior 24 hours. "But it's a cardinal sin, what he's accused of in the NBA, and the ultimate, extreme option I have is to ban him from the game.

"That's the level of authority I have here. Because there's nothing more serious, I think, around this league when it comes to gambling betting on our games. And that is a direct player involvement. And so, the investigation is ongoing, but the consequences could be very severe."