Greinke back in Royals hat 12 years after he was traded away
Zack Greinke continues to impact D-backs, Royals
Royals “definitely would have interest” in bringing Zack Greinke back - Royals Review
Kansas City Royals Zack Greinke Joins Incredible Club in Baseball History - Fastball
Zack Greinke excited to return to Royals
A's top Royals 5-4 to spoil Zack Greinke's return from the injured list
Zack Greinke - Wikipedia
Zack Greinke of Royals wins AL Cy Young Award - The San Diego Union-Tribune
Zack Greinke to start rehab assignment on Sunday in Omaha