Voracek was drilled in the face by an open-ice, second-period hit by Detroit's Niklas Kronwall. Voracek received stitches on the upper and lower parts of his mouth.
The winger may undergo a baseline test, performed for concussion symptoms, on Thursday.
"I don't want to say I feel too good, because every day is different," said a subdued Voracek, who passed a less-detailed concussion exam on Tuesday. "Hopefully, I can get back as soon as possible."
Voracek did not fault Kronwall, who was not disciplined by the NHL for the hit.
"I think it was clean," Voracek said. "I had my head down. . . . I saw him standing on the blue line and I was kind of naive and thought he was going to back up. It was a tough hit to take, but I think it was a clean hit from my side. It was my bad, and I think those hits should stay in the game."
Voracek said he has a stiff neck from hitting the ice. Asked if he felt foggy, he said: "I feel different, but I think anyone would feel different after that hit. Sometimes you can get slightly hit to the chin and be out a few months; sometimes you can get run over like I did and you can be back the next game. We'll see."
Jagr said he was injured when teammate Braydon Coburn inadvertently checked Valtteri Filppula into him.
"I was leaning and saw him late," Jagr said. "I was lucky I moved my knee away at the last second."
Defensemen Andrej Meszaros (lower-body injury) and Kimmo Timonen (back) will not play on Thursday, said Holmgren, who plans to recall at least one forward, possibly Harry Zolnierczyk, for the game.
Practice-site shift. The Flyers will have a game-day morning skate in Voorhees on Thursday for the first time this season. Coach Peter Laviolette said that practicing in Voorhees, instead of the Wells Fargo Center, gives the team more privacy.
"There are some things we want to work on, and it gets a little bit too public at the Wells Fargo," Laviolette said.
Breakaways. The Flyers are 5-2 since recently acquired Nick Grossmann and Pavel Kubina have both been in the lineup. . . . Ilya Bryzgalov in his last 10 games: 2.15 goals-against average; the Rangers' Henrik Lundqvist in his last 10 games: 2.09 GAA. Bryzgalov has started nine straight, and he has a .950 save percentage in his last four games.
Danny Briere is goal-less in his last 20 games, the longest one-season drought of his career. While with Phoenix, Briere went goal-less in his last 19 games of 1998-99, then didn't score in his first 12 games of the next season, so his two-season total was 31 games.
Claude Giroux is third in the NHL with a career-high 77 points. The Flyers, who have a pair of 3-2 wins over Florida this season, have had a lead after 10 minutes just once in their last 38 games. The Flyers have not allowed a power-play goal in the four games.
Florida is closing in on its first playoff berth since 2000.
Contact Sam Carchidi at firstname.lastname@example.org or on Twitter @BroadStBull.