Whatever is “murrain” anyway? Oh, nevermind. Passover has come and gone. Though plagues do remain a problem for the poor Yankees. We all know of Matsui and Sheff and Bubba and Johnny’s sore toe. And this week Alex and Jason have been brought low by some ailment of the stomach. Plus Mo’s back is hurtin’. And last night, Derek, Our Hero, had a digit wounded by an errant toss from Rodrigo Lopez. Will he emerge from the tunnel tonight, Reed-like, to lead his charges against the Big Bad BoSox? Will GM Brian Cashman be forced to call some lucky fan in from the stands to play a few innings at short? Whatever the case, the pitching matchup is a promising one. ERA leader Mike Mussina, king of the quality start, takes on Josh Beckett at the site of his greatest glory (and one of our ugliest days). Comment early. Comment often. And do it here….