Pittsburgh trailed 2-1 seven and a half minutes into the second period, but scored three unanswered goals to finish the game. Pascal Dupuis was the offensive star for the Penguins, scoring twice and assisting on the third Pittsburgh goal. That goal belonged to Jordan Staal, who also notched an assist on Dupuis' first goal of the game.
Brad Thiessen, starting in place of Marc Andre Fleury, recovered from a slightly shaky start to stop 22 of the 24 shots he faced.
Toronto, which led 2-1 after two periods, had been 20-0-1 this season entering the third period with a lead.
For more on the Penguins, check out Pensburgh and SB Nation Pittsburgh.