Arizona Diamondbacks trade Zack Greinke to Houston Astros
With Zack Greinke, the Astros Return to What Worked in 2017 - The New York Times
Astros emerge as World Series favorites after Zack Greinke trade
How Zack Greinke affects the Dodgers' World Series chances - True Blue LA
How Astros' Zack Greinke trade made Houston title favorites - Sports Illustrated
Zack Greinke Traded to Astros for Prospects
Astros trade for Zack Greinke at the DEADLINE
A retrospective look at Zack Greinke's tenure in Houston - The Crawfish Boxes
Despite Houston's Zack Greinke Trade, Dodgers' Starters Have Edge Over Astros