Educating an ace: How Zac Gallen has evolved into one of MLB's
Zac Gallen retires 16 straight after shaky start, D-backs rally to
Diamondbacks' Zac Gallen seems a bit hissy amid snakebitten season
Zac Gallen leads D-backs to win over Rockies in Alek Thomas' debut
Arizona Diamondbacks: Zac Gallen's rotation spot still unofficial
Arizona Diamondbacks' Zac Gallen scratched from start after
Zac Gallen throws 2 scoreless innings in D-backs' spring training
Arizona Diamondbacks: Zac Gallen's rotation spot still unofficial
Zac Gallen nearly unhittable in Diamondbacks' blowout win over