Tim Duncan Gets First Win as br Spurs Acting Head Coach Duncan filled in for Gregg Popovich in San Antonio's 104-103 win over the Charlotte Hornets on Tuesday. Popovich missed the game due to br "personal business," according to the Spurs. The head coach is expected to return for br Friday's game against the Brooklyn Nets. Tim Duncan, br via statement Tim Duncan, br via statement Duncan has been an assistant coach br on the Spurs staff since July. The forward spent all 19 seasons br of his career with the franchise, br where he won five NBA championships. Duncan is a finalist for the Naismith Memorial br Basketball Hall of Fame this year.