Sean Couturier revealed that he did indeed suffer a concussion, the first of his career, when he was leveled by Boston's Zac Rinaldo last Wednesday.

At Tuesday's morning skate, the Flyers center skated for the first since Friday. He is listed as day to day and won't play Tuesday night against visiting Buffalo.

Sam Gagner will be the second-line center tonight, and will move back to right wing when Couturier is healthy enough to play, coach Dave Hakstol said. Gagner (plus-3) has four points in his five games, and he also scored a shootout goal.

Couturier is hoping to play Thursday against the Devils.

"I'm progressing every day," he said.

Couturier said Rinaldo sent him a text, saying "I'm sorry."

His response?

"I said I was fine," Couturier replied.

Couturier was in a board battle with Boston defenseman Adam McQuaid when Rinaldo came charging into the play.

"The puck was coming along the boards and I redirected it in the middle and kind of braced myself for the guy (McQuaid) on my back," Couturier said, "and the next thing I know, I got hit right in the head" by Rinaldo.

Couturier, who will miss his second straight game Tuesday, said he thought Rinlado should have been suspended. "But there's nothing I can do about itr."

Breakaways. Luke Schenn will be back in the lineup against Buffalo (2-6), replacing Brandon Manning....The Flyers (4-2-1) have won four of their last five games.....Steve Mason (2-2-1, 3.32 GAA, .899 SP) will oppose Buffalo's Chad Johnson (2-5, 3.06, .879).....Claude Giroux has 23 points in 24 career games against the Sabres.....Former Flyers/Phantoms coach Terry Murray is a first-year Buffalo assistant....Danny Briere will be honored during a 7:06 p.m. ceremony; the puck will be dropped at 7:14 p.m.