Luka Doncic produced another dazzling performance as the Dallas Mavericks brought LeBron James and the Los Angeles Lakers back down to earth with a 127-125 victory on Tuesday.Doncic rattled off his eighth straight 30-point game to finish with 33 points, 17 assists and six rebounds in a thrilling back-and-forth duel with the Lakers, who were playing their first game since winning the inaugural in-season tournament on Saturday.