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BOSTON, MA - FEBRUARY 28: David Pastrnak #88 of the Boston Bruins checks Alex Killorn #17 of the Tampa Bay Lightning into the boards during the third period at TD Garden on February 28, 2016 in Boston, Massachusetts. The Lightning defeat the Bruins 4-1. (Photo by Maddie Meyer/Getty Images)

BOSTON, MA - FEBRUARY 28:  David Pastrnak #88 of the Boston Bruins checks Alex Killorn #17 of the Tampa Bay Lightning into the boards during the third period at TD Garden on February 28, 2016 in Boston, Massachusetts. The Lightning defeat the Bruins 4-1.  (Photo by Maddie Meyer/Getty Images)