Astros' Zack Greinke has a first pitch problem
VIDEO: Zack Greinke Calls His Pitch and Gives up 3-Run Homer
Royals' Zack Greinke nears milestone only four others have reached in MLB history
How Astros' Zack Greinke trade made Houston title favorites - Sports Illustrated
Zack Greinke pitches Royals to 5-2 win over Yankees in what could be his career finale
James, Greinke keep Nats off balance, escape trouble for win
One Zack Greinke pitch at every speed from 50mph to 100mph : r/baseball
Zack Greinke calls out signs in win vs. Giants
Appreciating Zack Greinke - AZ Snake Pit
UPDATED: Zack Greinke Scratched From Wednesday Start, Will Skip Turn In Rotation - Brew Crew Ball
MLB Signs on to In-Game Usage of Wearable Pitch-Calling Devices
Zack Greinke throws warmup pitch in middle of at-bat, a breakdown
Greinke breaks collarbone in brawl with Padres
Zack Greinke was purposefully giving away his pitches and got outs anyway
Astros insider: Zack Greinke turns back the clock