The Nationals optioned Harvey to Triple-A Rochester on Sunday, Jessica Camerato of MLB.com reports.
Since he tossed an inning in relief in three of the past four days, Harvey was unlikely to be available for Sunday's series finale versus Atlanta, a game the Nationals are treating as a bullpen day. With that in mind, the Nationals opted to replace Harvey on the 26-man active roster with Cory Abbott, who will be available as a multi-inning relief option after getting a call-up from Rochester.