What happened to Gregg Popovich? Why Spurs head coach is transitioning to front office role

San Antonio Spurs head coach Gregg Popovich is transitioning to full-time team president of basketball operations, according to ESPN's Shams Charania.

Popovich announced he was stepping away from the sidelines in February, after he suffered a mild stroke in November of last year. Assistant Mitch Johnson served as the interim head coach for the rest of the season.

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The Hall-of-Fame leader is the oldest coach in the NBA at 76 and has been the Spurs head coach since the 1996-97 season, guiding the team to five NBA titles in his tenure. He will now be moving the front office.

Here's what to know about Gregg Popovich's new role. 

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What happened to Gregg Popovich?

Charania reported that Popovich is transitioning to a new role as the Spurs' team president of basketball operations. Nothing has indicated that this move is for health reasons so far.

BREAKING: Gregg Popovich will no longer be Head Coach of the San Antonio Spurs and is transitioning full-time to Team President, sources told ESPN. The iconic Popovich is a Basketball Hall of Famer, the NBA’s all-time winningest coach, and led the Spurs to five championships. pic.twitter.com/mbtUtpgA4V

Popovich is the NBA's all-time winningest coach with 1,422 regular-season victories and is a three-time NBA Coach of the Year award winner, tied with Don Nelson and Pat Riley for the most in league history.

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