D-backs' Torey Lovullo puts Zack Greinke friendship aside when competing
Zack Greinke, Royals agree to deal, bringing RHP back to Kansas City: Sources - The Athletic
Royals, RHP Zack Greinke agree to 1-year contract: Source - The Athletic
2023 MLB Season Preview: Kansas City Royals - Battery Power
A's top Royals 5-4 to spoil Zack Greinke's return from the injured list - The San Diego Union-Tribune
Zack Greinke has played for some bad Royals teams - is this the worst? - Royals Review
Royals, A's proving MLB teams can be both buyers and sellers
2022 Season in Review: Zack Greinke - Royals Review
Zack Greinke may be the least run-supported pitcher in history - Royals Review
Series Preview #8: Royals @ Diamondbacks - AZ Snake Pit