Spurs Coach Gregg Popovich Sidelined Indefinitely

San Antonio Spurs head coach Gregg Popovich is out indefinitely due to an undisclosed health issue, with assistant Mitch Johnson stepping in as interim coach. Popovich, 75, did not coach during the Spurs' recent win over the Minnesota Timberwolves and will not travel for upcoming games against the Los Angeles Clippers and Houston Rockets. Johnson noted that Popovich's situation is not unprecedented, and the team must be ready to adapt. Popovich is the NBA's all-time leader in victories, with five championships to his name and a contract extension signed last year. The Spurs currently hold a record of 3-3 for the season. Johnson has previously served as head coach during Popovich's absences due to illness or medical procedures.