Ferrell was reinstated from the 15-day disabled list Monday and optioned to Triple-A Toledo.
Ferrell was shut down toward the end of spring training with a shoulder impingement, but after dominating batters in a three rehab appearances with High-A Lakeland, he seems to be back to full health. He'll likely slot into the bullpen with Toledo and could find his way to the majors if he can improve against upper-level hitters.