The Nationals designated McGarry for assignment Sunday, Mark Zuckerman of NatsJournal.com reports.
The right-hander was selected by the Nationals during the Rule 5 Draft in December, but the club won't keep him on the big-league roster. If he clears waivers, McGarry will be offered back to the Phillies, with whom he spent most of 2025 at Double-A Reading.