Bae will start in center field and bat seventh in Monday's game against the Astros.
He'll man center field for the second game in a row, with both of his starts coming against right-handed pitching. Bae looks set to occupy the strong side of a platoon in center field with the righty-hitting Michael Taylor after fellow the Pirates optioned fellow left-handed-hitting outfielder Jack Suwinski to Triple-A Indianapolis on Monday.