Lecavalier signed a five-year, $22.5 million free-agent deal with the Flyers. He is expected to center the second line, with Brayden Schenn and Wayne Simmonds as his wingers.
A four-time all-star, Lecavalier revealed that Flyers officials asked him if he could play wing if placed on Giroux's unit, and he told them he would feel comfortable playing the right side.
If he changes positions, "it's not something I really worry about, especially when you're being told you might play with Claude Giroux," Lecavalier said. "I'm really open to that and I'd be really excited about that."
Lecavalier was bought out of his contract by Tampa Bay. He helped lead the Lightning to the Stanley Cup in 2004.
"I was part of an organization for 14 years, so it was a tough few days," he said, adding his parents and wife took the news of leaving Tampa "pretty hard."
But after meeting with general manager Paul Holmgren and coach Peter Laviolette, Lecavalier said, "I really liked what they had to say and where the organization is going. So that made my decision a lot easier."
Lecavalier said being bought out gives him motivation to "prove the Flyers right" rather than Tampa Bay wrong. He said that he had about 10 teams on his list, but that the Flyers quickly jumped to the top "even before any offers were made."
"I just liked what they were saying, and looking at their lineup and everything," he said.
Lecavalier said he liked Laviolette's "point of view on the game" and his attacking system.
"They play hard, they play well defensively, but offense is also something they can bring that's very solid, so I thought I'd fit well in that mold," he said. "I like that better than staying on your heels."