Left-hander Jesse Biddle, a graduate of Germantown Friends School, was designated for assignment by the Phillies on Friday.
The 24-year-old Biddle underwent Tommy John surgery in October after going 9-6 with a 4.95 ERA in 24 combined starts between double-A Reading and triple-A Lehigh Valley.
According to the Phillies, to fill Biddle's spot on the 40-man roster, the Phillies claimed left-hander Bobby LaFromboise off waivers from the Los Angeles Angels of Anaheim.
LaFromboise, 29, appeared in 11 major league games last season for the Pittsburgh Pirates and posted a 1.13 ERA, allowing one earned run in 8.