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Former Astro, Royal Zack Greinke hits free agency at 38 - Beyond the Box Score
Inside the Zack Greinke deal -- 24 hours that rocked the MLB trade deadline - ESPN
MLB Free Agent Rankings: Manny Machado, Bryce Harper and more - Sports Illustrated
MLB Rumors: Angels Reportedly Unlikely to Re-Sign Zack Greinke, News, Scores, Highlights, Stats, and Rumors
zack greinke contract: Zack Greinke contract: Breaking down the Kansas City Royals' veteran's one-year deal
Zack Greinke listed as Diamondbacks' worst contract by ESPN
Orioles free agent target: Zack Greinke - Camden Chat