With Sean O'Donnell off on a boarding penalty, the Caps were on a 4-on-3 power play when Green collected the puck at the point and unleashed a slap shot that found its way past Sergei Bobrovsky and into the net.
The Flyers saw their six-game winning streak snapped. Nikolay Zherdev and Ville Leino scored for Philadelphia and Bobrovsky stopped 36 shots.
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