"Sometimes, you just have to be patient," Berube said.
Raffl, who will turn 25 on Sunday, had played in 11 games and collected just one assist before being sidelined because of the flu. He then missed six more games as a healthy scratch, giving him a seat in the press box.
"I tried to stay ready. Watch the game from up there and try to learn as much as you can, and go hard in practice," he said. "Eventually, you're going to get a chance to go back in."
Berube called Raffl "a positive kid, a happy kid. He works hard. He loves being around the team, and we really like him."
Raffl, trying to make a jump from a lower-level Sweden league, had been the Flyers' only extra forward. They could have brought up a veteran such as Kris Newbury and had Raffl play regularly with the AHL's Adirondack Phantoms.
"I think he's still developing, even though he hasn't been playing," Berube said before the game. "He's doing a lot of good stuff in practice, getting used to the pace. It's a faster pace up here, even if it's in practice. Right now, I don't see it being a problem."
Berube said he would decide on whom Raffl replaced at game time. Wednesday was Raffl's first game since Nov. 9.
Flyers center Vinny Lecavalier, the Lightning's former captain, was honored for his community service in the Tampa area.
Lecavalier spent 14 seasons with the Lightning and is in his first year with the Flyers.
"Ever since he came into the league, you wouldn't think of the Tampa Bay Lightning without mentioning Vinny Lecavalier," said Lightning defenseman Matt Carle, a former Flyer.
"It's going to be weird" to face him, Lecavalier's former linemate Marty St. Louis said before the game. "Obviously, for what he's done, on and off the ice, and what he's meant to this franchise . . . it's a special night with him here."
Entering Wednesday, Lecavalier and Matt Read led the Flyers with eight goals apiece.
The Flyers began the night having allowed two or fewer goals in 14 of their 23 games. In their last 11 games, they had yielded a total of 18 goals for a 1.64 goals-against average.
Overall, the team had a 2.39 goals-against average, placing them 10th in the 30-team league.
The game was to be a battle of backups - Ray Emery and Tampa Bay's Anders Lindback. Ben Bishop (14-3-1, 2.08 GAA, .931 save percentage), one of the NHL's best goalies this season, injured his hand at the morning skate, but the Lightning had been planning to use Lindback. . . . Emery had a 1.01 goals-against average and .960 save percentage in his last four appearances before Wednesday. . . . Entering Wednesday, the Lightning were 3-3-1 since their star center, Steven Stamkos, suffered a broken leg. . . . The Flyers began the night with at least one power-play goal in seven straight games. . . . The Flyers will host Winnipeg at 11:30 a.m. Friday before starting a six-game road trip against Nashville, Minnesota, Detroit, Dallas, Ottawa, and Chicago. . . . In his first 19 games this season, including 11 with Colorado, Flyers winger Steve Downie was plus-10.