"There were periods of the game where we felt really good about the way we were playing, but that being said, I think there were parts where we got away from our game plan a little bit," Rielly said. "For the most part, there were some good things that happened, and the end result was obviously what you want."
Rielly finished a give-and-go with Zach Hyman at the top of the crease after the Senators scored two straight goals early in the period to tie the game 4-4.
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"[Rielly] made a great play skating and then got it to me," Hyman said. "I just wanted to try to be like [Mitchell Marner] there. … I was just trying to get it backdoor, and it's good [Rielly] was there and he put it in. I didn't really think about it too much. I just wanted to put it in a space for him, he was driving hard."
Hyman and John Tavares each had a goal and an assist, Andreas Johnsson and Auston Matthews scored, and Marner had two assists for the Maple Leafs (33-17-3), who have won three games in a row. Frederik Andersen made 39 saves.
Magnus Paajarvi scored two goals, Matt Duchene and Thomas Chabot scored, and Jean-Gabriel Pageau had two assists for the Senators (19-29-5), who have lost five straight. Craig Anderson made 25 saves.
"I thought we had momentum for a good portion of the game, but we made a couple mistakes and they made us pay, and that was all the momentum they needed," Anderson said. "We came out flying in the third, got it back to 4-4, but we made a couple mistakes and they made good on their chances."
Matthews gave the Maple Leafs a 3-2 lead at 16:29 of the second period when he got around Senators defenseman Mark Borowiecki in the slot and shot past a sprawled Anderson. It was his fourth goal in the past five games following a seven-game drought.