OTTAWA, ON - APRIL 15: Boston Bruins Winger Tim Schaller (59) pins Ottawa Senators Defenceman Erik Karlsson (65) along the boards in the first period of game 2 of the first round of the 2017 NHL Stanley Cup Playoffs between the Boston Bruins and Ottawa Senators on April 15, 2017, at Canadian Tire Centre in Ottawa, On. (Photo by Jason Kopinski/Icon Sportswire via Getty Images)