How a Roy Williams Call to Coach Pop Saved Danny Green's Career Posted May 22, 2020 Danny Green spurned advice to play overseas and tried to find another way into the NBA. He signed a 10-day contract with the San Antonio Spurs in an effort to impress coach Gregg Popovich. Little did he know, his college coach, Roy Williams, would help him get back into the league. But Green knew he would have to tone down his ego and start hustling. (Inside Carolina)