UPDATE: Lecavalier will miss three to four more weeks with a non-dsiplaced fracture in his lower back.
Flyers center Vinny Lecavalier returned to Philadelphia on Sunday morning for medical evaluation on his aching back.
The Flyers' season may hinge on the results.
Lecavalier is THAT important to the team.
In a statement, the Flyers said Lecavalier returned to Philadelphia "for further evaluation by our medical staff." He is not expected to join the team in Chicago, where the Flyers will end their six-game road trip Wednesday.
"I doubt we'll see him on this trip," coach Craig Berube told reporters after Sunday's practice in Ottawa.
The veteran center may have an MRI on the back, and he will not be with the team for Monday's game in Ottawa.
Lecavalier, 33, has missed the last three games, and has missed seven contests this season. He is tied with Matt Read for the team lead with nine goals.
The Flyers are 2-5 without Lecavalier in the lineup.
Lecavalier skated in Dallas Saturday morning but was not himself, assistant GM Ron Hextall said.
The Flyers are 2-2 on their six-game, 13-day road trip, including Saturday's 5-1 loss in Dallas.
Follow Sam Carchidi on Twitter @BroadStBull.