Zack Greinke can be himself with Astros
Zack Greinke and the Astros stare down another World Series that could be their last
Zack Greinke traded to Houston Astros by Arizona Diamondbacks - Los Angeles Times
Astros insider: The artistry of Zack Greinke
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Zack Greinke - Wikipedia
Revisiting the Houston Astros Trade For Zack Greinke
Zack Greinke's dud puts Astros postseason pitching plan to the test - ESPN
Tucker's grand slam, Greinke's gem lead Astros over Angels
Ranking the Top 10 Landing Spots for Zack Greinke in MLB Free Agency, News, Scores, Highlights, Stats, and Rumors
Astros Acquire Zack Greinke - MLB Trade Rumors
As Zack Greinke moves on, he fulfilled his part of Astros' blockbuster deal