Tim Duncan Returns to br San Antonio Spurs as Coach Duncan will be an assistant coach under head coach Gregg Popovich. Duncan is the Spurs' all-time leader in points, br rebounds and blocked shots. He won five NBA titles and br two MVPs in his 19-year br career with San Antonio. Gregg Popovich, via statement Duncan retired from the NBA br three years ago, and his number, 21, has been retired by the Spurs. He was the No. 1 overall pick br of the 1997 NBA Draft. Former team intern Will Hardy br will also be taking on an br expanded role as an assistant coach.