Arizona Diamondbacks trade Zack Greinke to Houston Astros
Former Astro, Royal Zack Greinke hits free agency at 38 - Beyond the Box Score
It's over now' – Astros eager to put scandal behind them
Astros: Should starter Wade Miley get a second chance?
It was Zack Greinke's world, and the Nationals were living in it in World Series Game 7
World Series Game 2: Instant reaction as Astros even series
How Astros' Zack Greinke trade made Houston title favorites - Sports Illustrated
Did latest free agent prediction suggest Zack Greinke is an option for LA Angels?
Zack Greinke has neck soreness
World Series: Astros delay Atlanta's party plans with statement win
Astros Could Use Zack Greinke In Relief In Postseason - MLB Trade Rumors