Chris Kreider, the Rangers' first-line left wing, will be sidelined for the remainder of the regular season and for at least the start of a potential first-round playoff series after undergoing left hand surgery Friday morning at the Hospital of Special Services in Manhattan. Martin St. Louis, who has not scored in 12 games since joining the Rangers at the March 7 trade deadline, has moved up to fill Kreider's spot on the top line with Rick Nash and Derek Stepan while J.T. Miller has joined the lineup following his recall on Wednesday from the AHL Wolf Pack.