They'll have to do it without their starting goalie Brian Boucher, who is out for at least a month with a sprained MCL in his left knee, suffered in Monday night's 4-0 victory against Boston.
The Flyers have won two straight games entering Wednesday's Game 6 and say momentum has shifted toward their side, even as they trail in the series 3-2.
Boucher injured both of his knees, Flyers general manager Paul Holmgren said Tuesday afternoon, but the left knee was in far more serious condition with the Grade 2 MCL sprain.
Michael Leighton -- the former starter who hasn't played in two months because of an ankle injury -- stepped in for Boucher and completed the shutout with 14 saves.
It was just the second combined playoff shutout in NHL history,
according to the Elias Stats Bureau.
Leighton, who has never played in the postseason, had been out since March 16, when he suffered a severe high ankle sprain in a shootout loss against Nashville.
Leighton, in fact, was not the Flyers' original season starter. That was Ray Emery, who was lost for the season in early March to have hip surgery. The Flyers had claimed Leighton off waivers from the Carolina Hurricanes on Dec. 15.
Information from The Associated Press was used in this report.