The Mavericks shot just 2-of-14 from the field as a group and managed only 11 points in the first quarter. Their last field goal came at the 4:35 mark when Cooper Flagg made a contested layup. While shutting them down, the Spurs surged ahead to grab a 21-11 lead at the end of the first quarter.

The team's offseason moves, including adding big men Luke Kornet and Kelly Olynyk, have bolstered the rookie's optimism.

Dylan Harper has yet to touch the floor in the Summer League, and despite that, the Spurs still appear to have had a very successful draft class.