Flagg erupted for a career-high 49 points in the Dallas Mavericks’ loss, setting a record for the most points by a teenager in NBA history. His 49-point showing broke the Dallas Mavericks‘ rookie record he shared with Mark Aguirre, whose No. Not to be outdone, Knueppel scorched the Mavericks to the tune of 34 points with eight three-pointers. When recalling how surreal it is to have an NBA duel with his former college teammate, Flagg had nothing but love for Knueppel. Flagg and Knueppel have been the frontrunners for the Rookie of the Year award essentially all season.