Vitale has been pounded since the Isles series. I remember several times in Game 2 where he was pummeled after a faceoff and was slow to get up off the ice and get into the play. I wasn't surprised to see him out tonight, if it was for injury (Bylsma said "not available" which could be family stuff as well).
I love how Spezza was "a ways away" per Maclean before the series started. I guess five days is like a mild concussion.