Barrera was recalled from Triple-A Rochester as the 27th man for Thursday's doubleheader against the Phillies, Jesse Dougherty of The Washington Post reports.
Barrera was sent down Wednesday, but he'll start behind the plate in the second game of Thursday's twin bill. The 26-year-old has hit .323 with a home run, two doubles, four runs and two RBI since the All-Star break.