Luka Dončić had 30 points and 14 rebounds, and the Dallas Mavericks beat the Golden State Warriors 119-109 on Tuesday night to avoid being swept in the Western Conference finals.
It was the 10th double-double in his 14 games this postseason for Dončić, who also had nine assists and got some help from his supporting cast to extend this series. He had 40 points in Game 3, when Reggie Bullock shot 0 for 10 shooting with seven misses from…