Couturier sustained a lower-body injury in the first period of Game 3 on Thursday, but did not look restricted in the morning skate Sunday, took line rushes in pre-game warm-ups in his usual spot, between forwards Maxime Talbot and Eric Wellwood.
Couturier, the eighth pick of the 2011 Entry Draft, has three goals and an assist in nine playoff games, but has developed into the team's best defensive center.
"Sean is an important piece of the team," Flyers coach Peter Laviolette said following the team's skate Sunday morning. "He looked good skating out there. He's smiling, that's always good."
Here's how the lineup will look when the puck drops about 7:30 p.m. ET:
There's not much to say. We played like [garbage]. I think every guy in the room should be completely embarrassed about how they played tonight. Every single person. To start a road trip, one of the biggest road trips and have a division rival chasing you down and have a ton on the line, it's ridiculous how we played tonight.
— Anaheim forward Andrew Cogliano after the Ducks' 7-2 loss to the Flames on Wednesday