It appears that the Phillies recognized that having Chad Qualls and Michael Schwimer as your sole non-Jonathan Papelbon-ian right-handed relief options was a sub-optimal situation, and have made the necessary roster move, sending lefty reliever Raul Valdes to Triple-A Lehigh Valley, and recalling righty B.J. Rosenberg.
Rosenberg, 26, struck out 26 in 20.2 innings in Lehigh Valley, allowing just six walks.
Phuture Phillies notes that Rosenberg's fastball sits in the low to mid 90s, and he features a good slider with just an adequate changeup. His advanced age is owed at least in part to his numerous injuries going back to his college days at Louisville.
Matt Gelb has more on Rosenberg here.
Early in the spring, Rosenberg probably would have been at best the fourth right-handed relief option from Lehigh Valley for the 2012 season, but with Schwimer's promotion and struggles, Phillippe Aumont's inconsistency, and Justin De Fratus' injury, it's all Rosenberg now.
And, apparently, he's Jewish, so Mazel Tov!