The Hawks advanced to the semifinals of the Las Vegas Summer League Saturday with a 91-83 victory over the Mavericks.
The Hawks (4-2) will play the Spurs at 6 p.m. (ET) on Sunday. The championship game of the tournament will be played Monday.
Glenn Robinson III led the Hawks with 23 points, including three 3-pointers. Terran Petteway finished with 19 points and Lamar Patterson added 16 points and five assists and Brandon Ashley added 16 points.
Center Edy Tavares suffered a laceration of his right index finger in the third quarter. Although available to return after he received four stitches, he did not play the rest of the game.
The No. 14-seeded Hawks took control by outscoring the No. 22-seeded Mavericks 21-13 in the second quarter.
Justin Anderson led the Mavericks with a game-high 23 points.