Kansas City Royals' Zack Greinke (23) pitches during the Rays 4
Zack Greinke named Royals Opening Day starter - Royals Review
Astros name Zack Greinke their Opening Day starter
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Zack Greinke - Wikipedia
Kansas City Royals Scores, Stats and Highlights - ESPN
Royals' P Zack Greinke to start Friday after completing rehab
Zack Greinke News - ESPN
Zack Greinke returning to Royals on one-year, $13 million deal
Weekend Rumblings - News for April 29, 2023 - Royals Review