Longtime San Antonio Spurs coach Gregg Popovich, who experienced an undisclosed health issue over the weekend, will not be with the team for upcoming games in Los Angeles and Houston, the Spurs announced Monday.

Mitch Johnson is stressing a business as usual approach for the San Antonio Spurs while coach Gregg Popovich is out indefinitely while recovering from an illness.

“Indefinitely” covers a broad range of possibilities, with the only certainty being that this will be the longest regular-season absence of Popovich’s Hall of Fame career. He missed Saturday’s home victory over the Timberwolves, and will not join the Spurs on a trip that includes road games at the Clippers and the Rockets.