Getzlaf's goal with 25.9 seconds to play broke a 2-2 tie and proved to be the game-winner.
Niedermayer got the Ducks on the board by tapping the puck in as Bobby Ryan was pushed into Anderson, taking the Colorado tender out of the play. Sexton's goal 2:31 later tied the game.
Anaheim kept up the pressure and capitalized when Getzlaf swatted a loose puck into the net from the left circle. Marchant scored an empty net goal in the closing seconds to punctuate the win.
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