FILE -G olden State Warriors guard Stephen Curry, left, shakes hands with former coach Al Attles after Game 5 of the NBA basketball Western Conference finals against the Houston Rockets in Oakland, Calif., Wednesday, May 27, 2015. (AP Photo/Ben Margot, File)

FILE - St. Louis Hawks Cliff Hagan (16) looks to pass as San Francisco Warrior Al Attles (16) defends during a basketball game in St. Louis, Jan. 6, 1963. (AP Photo/Fred Waters, File)

Former Golden State Warriors head coach Al Attles is shown during the first half of Game 2 of basketball's NBA Finals between the Warriors and the Cleveland Cavaliers in Oakland, Calif., Sunday, June 4, 2017. (AP Photo/Marcio Jose Sanchez, File)