William Nylander and Auston Matthews scored and Anthony Stolarz made 21 saves for the Maple Leafs (39-24-3), who are 1-4-1 in their past six.
“I think the margins have been really small the last couple games but just details, details in our game I think haven’t quite been there and it’s on us to figure that out and we’ve got to get it through our heads that all these games, especially some of the teams we are playing, are going to be playoff-like games,” Matthews said. “There are teams fighting for their lives, trying to make a push. They are desperate teams like the one we played tonight so we have to wrap our heads around that and just be better all-around as a team.”
The Senators went up 3-2 at 14:08 of the second period when Giroux’s shot from the right hashmarks by the boards was inadvertently deflected in the slot by Toronto's Chris Tanev on the power play.
“I thought their three goals were all about losing battles inside the blue line," Toronto coach Craig Berube said. "We didn’t win enough battles there and that’s an area of the game, it’s urgency for me and details in the first two periods that weren’t there but when we decide to have urgency and do things the right way, we’re a way better team in the third but we’re behind and sometimes you don’t come back. We had chances but that’s what happens.”
The Maple Leafs had a power play at 14:51 of the third period when Artem Zub was assessed a two-minute minor for delay of game - puck over glass but failed to score.
Ottawa thought it had scored into an empty net with 1:10 remaining but the play was determined to be offside after a successful coach's challenge by Toronto.
Michael Amadio did score into an empty net at 19:53 for the 4-2 final.
“It got a little hairy down the stretch obviously,” Ottawa coach Travis Green said. “That was a huge kill for our group against a power play that’s very potent. We had some chances at the empty net as well that we’d probably like to have back but again, I think it goes back to staying the course and we talk a lot about doing whatever it takes to get the job done and we had everyone in that room buying in tonight.”
Toronto went up 1-0 at 6:49 of the second period when Nylander carried the puck from above the right face-off circle, cut across the top of the goal crease and backhanded a shot between Ullmark’s pads.
Sanderson tied it 1-1 at 7:57 when he took a cross-slot pass from Tim Stutzle and shot over Stolarz’s blocker from the left face-off dot.
“I had a look in the first period and I missed it so I kind of knew I was going in the same spot so it was a great pass by Timmy,” Sanderson said.