The San Antonio Spurs won five NBA Championships under former head coach Gregg Popovich, who announced his retirement after 29 seasons earlier this week. The Popovich retirement signaled the end of an era for the Spurs and a marked a new path forward under Popovich's successor Mitch Johnson.

Gregg Popovich has stepped down as coach of the San Antonio Spurs, ending a three-decade run that saw him lead the team to five NBA championships, become the league’s all-time wins leader and earn induction into the Basketball Hall of Fame.

Gregg Popovich steps down as San Antonio Spurs head coach after 29 seasons; ESPN’s Shams Charania reveals the key reason behind the decision.