Fans watch shoving between Ottawa Senators left wing Clarke MacArthur (16) and Boston Bruins defenseman John-Michael Liles (26) during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators defenseman Chris Wideman (6) and Boston Bruins left wing Tim Schaller (59) during a NHL game. (Brian Fluharty/Inside Hockey)
Boston Bruins center Patrice Bergeron (37) skates off the ice after a loss to the Ottawa Senators during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators left wing Mike Hoffman (68) skates past Boston Bruins defenseman Kevan Miller (86) during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators center Ryan Dzingel (18) moves the puck between Boston Bruins defenseman Colin Miller (6) and defenseman John-Michael Liles (26) during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators left wing Mike Hoffman (68) looks to pass in front of Boston Bruins center Noel Acciari (55) during a NHL game. (Brian Fluharty/Inside Hockey)
Rene Rencourt performs the National Anthem during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators celebrate their win over the Boston Bruins during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators defenseman Chris Wideman (6) takes a hit from Boston Bruins defenseman Zdeno Chara (33) during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators center Ryan Dzingel (18) moves the puck between Boston Bruins defenseman Colin Miller (6) and defenseman John-Michael Liles (26) during a NHL game. (Brian Fluharty/Inside Hockey)
Boston Bruins goalie Tuukka Rask (40) makes a save during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators right wing Mark Stone (61) and Boston Bruins left wing David Pastrnak (88) during a NHL game. (Brian Fluharty/Inside Hockey)
Boston Bruins defenseman Zdeno Chara (33) and Boston defenseman Colin Miller (6) talk before a face off during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators defenseman Erik Karlsson (65) during a NHL game. (Brian Fluharty/Inside Hockey)
Boston Bruins defenseman Zdeno Chara (33) during a NHL game. (Brian Fluharty/Inside Hockey)
Boston Bruins center Noel Acciari (55) and Ottawa Senators defenseman Marc Methot (3) along the boards during a NHL game. (Brian Fluharty/Inside Hockey)
Fans pass a Bruins flag around the arena before the start of a NHL game. (Brian Fluharty/Inside Hockey)
The Ottawa Senators celebrate their second period goal during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators right wing Bobby Ryan (9) slips the puck past Boston Bruins defenseman Zdeno Chara (33) during a NHL game. (Brian Fluharty/Inside Hockey)
Boston Bruins center David Krejci (46) battles for control of the puck against Ottawa Senators right wing Bobby Ryan (9) during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators center Ryan Dzingel (18) takes a shot on net during a NHL game. (Brian Fluharty/Inside Hockey)
Boston Bruins defenseman Kevan Miller (86) takes a hit from Ottawa Senators left wing Mike Hoffman (68) during a NHL game. (Brian Fluharty/Inside Hockey)
Dienna Lang waves a Bruins Flag before the start of a NHL game. (Brian Fluharty/Inside Hockey)
Boston Bruins goalie Tuukka Rask (40) makes a save after a shot from Ottawa Senators center Kyle Turris (7) during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators center Derick Brassard (19) moves the puck past Boston Bruins defenseman Kevan Miller (86) during a NHL game. (Brian Fluharty/Inside Hockey)
Ottawa Senators goalie Craig Anderson (41) celebrates after a win over the Boston Bruins during a NHL game. (Brian Fluharty/Inside Hockey)
Boston Bruins goalie Tuukka Rask (40) blocks a shot from Ottawa Senators left wing Alex Burrows (14) during a NHL game. (Brian Fluharty/Inside Hockey)