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.
He's only 17 but he can see the ice so well and he moves the puck and goes to the open ice all the time, so I just think he's a player that is ready to play in the NHL. I'm really looking forward to coaching someone like this.
— U.S. National Junior Team coach Ron Wilson on Auston Matthews, the projected No. 1 pick of the 2016 NHL Draft