The Nationals optioned Perales to Triple-A Rochester on Saturday.
Perales will be kicked out of the Nationals' bullpen to make room on the active roster for Connelly Early (elbow), who was activated from the IL to start Saturday's contest. Perales didn't find much success during his first stint in the majors, allowing 14 earned runs in just 11 innings while recording a 13:13 K:BB.