Dylan Harper underwent surgery to repair a partially torn ligament in his left thumb after a workout, with Spurs brass optimistic he’ll be ready for the Oct. 22 season opener vs. Dallas. The 19-year-old guard from Rutgers was San Antonio’s No. 2 pick this year, amid a draft class headlined by Cooper Flagg of Dallas. Harper’s high-floor, two-way profile could mesh with Flagg’s shot-creating duties as the Spurs lean on a backcourt featuring De’Aaron Fox and Stephon Castle. Wembanyama anchors the center spot, with Devin Vassell and Harrison Barnes flanking him, as San Antonio hopes to open the season strong after Wemby’s health hiccup.