"You could tell the way he was playing out there that he was our emotional leader throughout the entire game," Talbot said.
It was DeBrincat's first two-goal game with the Senators, who acquired him in a trade with the Chicago Blackhawks on July 7.
"It's nice to see the puck go in the net," DeBrincat said. "Frustrating couple games before, it wasn't going in, so it's nice to get those in and hopefully keep going."
The Flyers had killed off nine straight short-handed situations in their three previous games.
"They get two power-play goals, and I think that's the game," Hart said. "End of the day, my job as a goaltender is to stop the puck, and I'm a big part of the penalty kill as well. I have to find a way to make some more saves."
Stutzle scored an empty-net goal with 3:54 remaining for the 4-1 final.
DeBrincat said there was extra motivation to win for Giroux.
"He's been the face of the franchise for X-amount of years now and it's awesome to see him come back, see the warm welcome he got," DeBrincat said. "He obviously wanted that one a lot. We battled hard out there. He played a great game and kind of led us out there."
NOTES:Flyers forward Wade Allison had to be helped off the ice after making a hit on Senators defenseman Jacob Bernard-Docker with 4:40 remaining in the second period. There was no update after the game. ... Konecny had an assist on Hayes' goal, giving him seven points (one goal, six assists) during a five-game point streak. ... Chabot's goal was first point in seven games. ... Senators defenseman Nick Holden played his 600th NHL game. He had one shot on goal and two blocked shots in 19:30 of ice time. ... The Flyers set a team-record with 59 hits, including a team-high nine by forward Scott Laughton.