G Dwight Powell scored 11 points off the bench.
F Yogi Ferrell added 18 points for the Mavericks (2-12), who have lost eight of their last nine games.
G Devin Harris missed Sunday’s game with bruised ribs.
F Harrison Barnes led Dallas with 22 points. Barnes, the Mavericks’ leading scorer this season, appeared in his 400th career game.
F Dirk Nowitzki was issued a flagrant foul midway through the second quarter and received a technical after arguing the call.