(AP Photo/Tony Gutierrez)Dallas Mavericks guard Luka Doncic, seen here in an earlier playoff game, connected on 12 of 21 shots Sunday in Game 2 of the NBA Finals and finished with 32 points, 11 assists and 11 rebounds, marking his 10th career playoff triple double and the first Finals triple-double in Mavericks' history. But Doncic's brilliant performance wasn't enough as the Celtics defeated the Mavericks 105-98 to take a 2-0 lead in the best-of-seven series.