Provides two helpers

BOSTON -- Martin Necas and Jack Drury each made his debut for the Colorado Avalanche in a 3-1 loss to the Boston Bruins at TD Garden on Saturday. The forwards were acquired Friday in a three-team trade also involving the Carolina Hurricanes and Chicago Blackhawks that sent Mikko Rantanen and Taylor Hall to the Hurricanes.

Avalanche center Nathan MacKinnon extended Colorado’s lead in its Western Conference showdown against the Oilers with two first-period goals in rapid succession.