Boucher gave up three goals on 14 shots in the final two periods of the 7-4 loss that put Philadelphia on the brink of elimination. Philadelphia trails the series 3-2 and will try to stay alive at home in Game 6 on Wednesday night.
Leighton is 6-0 at home in this year's playoffs, yielding only nine goals in those games. He has an NHL-low 2.34 goals-against average in the postseason.