I'm told that it was a health issue and it was a serious health issue that the Spurs dealt with and Gregg Popovich dealt with over the weekend,' Charania said.

Longtime San Antonio Spurs head coach Gregg Popovich suffered a health scare ahead of the team's Saturday matchup against the Minnesota Timberwolves. Since the incident, the franchise has remained tight-lipped about what's going on with the future Hall of Fame head coach.

Assistant coach Mitch Johnson will serve as interim coach while Gregg Popovich deals with the undisclosed health issue that surfaced before Saturday's game.