Diamondbacks ace Zac Gallen uses doubters to fuel his fire
Diagnosing a puzzling down year for Zac Gallen - PHNX
Miami Marlins Prospect Watch: Spotlight on Starting Pitcher Zac Gallen
Could the Twins Still Swing a Deal for an Ace? - Twins - Twins Daily
Diamondbacks ace Zac Gallen in a 'class by himself
Streak on a Leash: Zac Gallen Chases History (Again)
Diamondbacks starter Zac Gallen scratched with right lateral forearm soreness - MLB Daily Dish
Former UNC Pitcher Zac Gallen on Impressive Streak in MLB
Baseball: In less than a month, this standout trio fulfilled MLB dreams
When will Zac Gallen make his Majors debut
Top 200 Fantasy Prospects, June 2019 - The Dynasty Guru
Pirates Pound Out 17 Hits in Beating Diamondbacks Ace Zac Gallen 13-3
Marlins prospect Zac Gallen on being called up
Everything You Need To Know About Zac Gallen
NL Cy Young Candidates: Zac Gallen and Logan Webb - The New York Times