Bruins left wing Milan Lucic cannot reach the puck after being tripped by a Duck. (AP Photo/Elise Amendola)

Bruins and Ducks mix it up in the first period . (AP Photo/Elise Amendola)

Boston goalie Tuukka Rask keeps the puck in front of him as defenseman Zdeno Chara (33) checks Anaheim Ducks defenseman Cam Fowler. (AP Photo/Elise Amendola)

Anaheim Ducks defenseman Cam Fowler, left, and Boston Bruins center Gregory Campbell battle for position as Ducks goalie Frederik Andersen guards the net in the first period. (AP Photo/Elise Amendola)

Anaheim Ducks defenseman Sami Vatanen dives but Boston Bruins' David Krejci handles the puck ahead of him. (AP Photo/Elise Amendola)

Anaheim Ducks left wing Patrick Maroon celebrates his goal with Anaheim Ducks center Rickard Rakell (67) in the second period. (AP Photo/Elise Amendola)