Zack Greinke opts out of his contract with Dodgers - Los Angeles Times
Zack Greinke opts out of contract and becomes free agent
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Zack Greinke Officially Opts Out Of Contract : r/baseball
Free agent prize hurler Zack Greinke signs six-year, $206-million
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Astros' acquisition of Zack Greinke trumps Yasiel Puig deal as