David Stern acknowledged a "heated exchange" with Dwyane Wade on Friday.

"I feel passionately about the system that we have and what it has delivered and what it should continue to deliver for the players and the owners," said Stern on Saturday. "And he feels passionately, too. And I think that if anyone should step up on that, it’s my job, on behalf of the owners, to make the points that need to be made."