Chris WattieREUTERS
Daniel Paille, left, celebrated his second-period goal with teammate Shawn Thornton.
The Bruins fell behind the Senators in Ottawa 2-0 in the first period, but tied the game on goals by Shawn Thornton late in the first and by Daniel Paille in the second. The third period was scoreless, sending the game to overtime, which was scoreless as well. David Krejci scored the game-winner in the fourth shootout round.