Brian Elliott let in a pair of Maple Leafs goals in the final frame, however, including a power-play marker from Clarke MacArthur with 51 seconds remaining. But he then shut the door, turning aside 33-of-35 for the game to earn the win.
The Senators broke a five-game losing streak against the Maple Leafs with the victory.
Francois Beauchemin got the other goal for Toronto and Jean-Sebastien Giguere saved 21-of-24 Ottawa shots in the Leafs' loss.
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