Photo by: Gene J. Puskar Pittsburgh Penguins defenseman Matt Niskanen (2) puts the puck behind Washington Capitals goalie Braden Holtby (70) and defenseman Karl Alzner (27) for a goal in the third period of an NHL hockey game in Pittsburgh on Tuesday, March 19, 2013. The Penguins won 2-1. (AP Photo/Gene J. Puskar)
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