Gross confirms just a day off for Callahan.
Update, 12:15 p.m.:
@thenyrangers says the Rangers practice this morning is in two parts. First regular practice, then flood the ice, followed by power play.
Andrew Gross reports that Ryan Callahan is not skating at practice and Matts Zuccarello is taking his place with Artem Anisimov and Brandon Dubinski.
...assuming it's nothing more than a maintenance day which Torts is know to give.