Mitch Keller Met the Challenges of Double-A with Greatly Improved Secondary Pitches
ALTOONA, Pa. – Most top prospects experience a bump in the road at some point during their ascension to the major leagues. That was no different for Mitch Keller. Fortunately, those “learning experiences” only lasted a short time, and Keller is now one step closer to his final goal of reaching Pittsburgh. During six starts between […]