Callahan will travel with the team to Raleigh, N.C., but coach John Tortorella said he's not sure if he'll be able to play.
Callahan is second on the team with 25 goals and hasn't missed a game this season. He was forced to sit out the Rangers first-round playoff series last year with a broken suffered from blocking a shot by Boston's Zdeno Chara in the 80th game of the regular season.
We have no doubt how he can play. You don't, with four teams that are left, you're not getting here without good goaltending. All great goalies left, and [Bishop] is a top-tier goaltender in this league and he's shown it.
— Lightning coach Jon Cooper on goalie Ben Bishop, who shut out the Rangers in Game 5