Zac Gallen's pitching focus on perfection

Zac Gallen Ks 11 in Diamondbacks' win to become MLB's strikeout leader

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PitchingNinja] Zac Gallen, Elevated Fastball (ball) and Knuckle Curve (backwards K), Individual Pitches + Overlay Why you might take the Knuckle Curve. : r/baseball

Is Zac Gallen Cy Young Worthy? - PITCH BREAKDOWN

Practice With A Purpose: Pitcher Zac Gallen is passionate about his craft, Features

Diamondbacks top Phils, gain ground in wild-card race

Marlins excited about potential of pitcher Zac Gallen

Zac Gallen's pitching focus on perfection

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Zac Gallen enjoys underdog role for D-backs vs. Dodgers

The Right Stuff for Zac Gallen