The legendary San Antonio Spurs head coach hung up his clipboard. But his influence is still everywhere in the NBA.

Gregg Popovich understood the world. That goes back long before the basketball world knew who he was. It probably can be traced to at least Popovich's time at the U.S. Air Force Academy, where he majored in Soviet studies and was on his way to becoming a spy.

After suffering a stroke months ago, Gregg Popovich steps down as Spurs head coach. Chandler Hoefle. More Videos. Caitlin Clark takes on year two in the WNBA