Tim Duncan scored 21 points and grabbed nine rebounds on Sunday, as the Spurs completed their sweep of the Clippers and improved to 8-0 in the postseason. Duncan averaged just 28 minutes per game this year, and with the Spurs breezing through two rounds their veterans should be plenty rested for the fiercer battles to come. While the national media lavishes attention on locker room dramatics in Miami and L.A., the Spurs have quietly won 18 consecutive games dating back to the regular season.