Satnam entered the game with two minutes left in the first quarter. He immediately made an impact grabbing a defensive rebound with 1:44 left on the clock. He went on to score his first points in the game with a free throw in the second quarter.
Jeremy Tyler led the Mavericks with 25 points and 11 rebounds in the late game nail-biter. The 24-year-old Dallas center, whose NBA career includes stops in Atlanta, Golden State and New York, was 11-of-15 from field goal range and also had four offensive rebounds.
Dwight Powell had 12 points and nine rebounds and Maalik Wayns had 12 points and three assists.
Dallas cruised to a 30-20 lead at the end of the first quarter, thanks to nine points from Tyler and eight from Anderson. Anderson added five points in the second and as the Mavericks led by 12 at the half.
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Trailing 68-63 at the end of three, Los Angeles tied the game at 76-76 on a 3-point play by forward Jabari Brown with 6:19 left in the final period.
After a Lakers timeout, 27th overall pick Larry Nance Jr. inbounded the ball to Julius Randle from 30-feet out, but the former Kentucky Wildcat couldn't get a 3-point shot off before time expired.
Dallas moves on to the second round of the winner's bracket, where they'll face the NBA Development League Select team next.