Zack Greinke to make his Astros debut in Houston
MLB deadline tracker -- Astros land Zack Greinke as last-minute deals rock MLB - ESPN
Zack Greinke Traded to Astros for Prospects
Carlos Correa heads list of Astros free agents
Zack Greinke, in potentially last start as an Astros, gave Houston a chance
Astros Acquire Zack Greinke - MLB Trade Rumors
Revisiting the Zack Greinke trade between Astros, Diamondbacks
Zack Greinke was purposefully giving away his pitches and got outs anyway
Former Astro, Royal Zack Greinke hits free agency at 38 - Beyond the Box Score
With Zack Greinke, the Astros Return to What Worked in 2017 - The New York Times
Astros: the case for bringing back Zack Greinke for 2022
Why Astros veteran Zack Greinke is giving up his slider
Zack Greinke Traded to Astros for Prospects
Revisiting the Houston Astros Trade For Zack Greinke