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Sidney Crosby, the six-time Pittsburgh Penguins all-star with a history of head injuries, took a novel approach after suffering yet another concussion early in a second-round playoff series—tangling with some of the fiercest players in the league and sliding headfirst into fiberglass walls.
And now, ahead of a star-laden Game 7 against the Washington Capitals that should have been a sorely-needed NHL showcase, the dominant topic…