MLB's transactions page is reporting that the Phillies have "reassigned" Michael Lorenzen "to the minor leagues." Not to any specific minor-league club, though.
I assume this is just a one-day paper thing, so that the big club doesn't have to remove a relief pitcher until after today's game. (When Lorenzen goes on the active roster, some pitcher needs to come off, to keep to the limit of 13 pitchers on the active roster.) But at first glance, I was... "Wha?"