Astros Acquire Zack Greinke - MLB Trade Rumors
After a Flurry of Deals, Zack Greinke Still Stands Alone - The New York Times
Zack Greinke, Diamondbacks reportedly agree to 6-year, $206.5 million deal
Arizona Diamondbacks: Zack Greinke regains old form
Astros get Zack Greinke, trade ex-Woodpecker Seth Beer and others to Diamondbacks
Zack Greinke spurns Dodgers for reported 6-year, $206.5 million deal with Diamondbacks - True Blue LA
ESPN report details Diamondbacks' process of trading Zack Greinke
Royals agree with Greinke on deal for 2023
Zack Greinke works extensively on pickoff move in spring game
Yankees beat D-backs as Greinke goes to Astros
MLB free agents 2016: Zack Greinke to sign with Diamondbacks, report says