Garcia was optioned to Triple-A Scranton/Wilkes-Barre on Monday.
Garcia should serve as rotation depth this season, but there wasn't a role for him to fill right away. He struggled to a 6.85 ERA in 24 outings at the Triple-A level last season, walking 15.6 percent of opposing batters, so he needs to sort out his control before he makes his push for a rotation spot.