Simon Gagne could have a concussion. The Flyers can find out for sure Friday in Boston if the left winger undergoes baseline neurological testing. Gagne said he awoke Thursday without dizziness after being clipped near the chin by Jay Bouwmeester during the 4-3 loss to the Panthers on Wednesday in Sunrise, Fla. He sat out most of the game. General Manager Paul Holmgren was optimistic that Gagne would play Saturday afternoon in Boston.