Ex-Mets star Matt Harvey announces retirement from baseball: 'Thank you, and goodbye', National Sports
Matt Harvey, former Mets sensation, announces his retirement
Former Mets ace Matt Harvey retiring after nine seasons
The ESPN Daily podcast -- How to listen, episode guide and more - ESPN
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Former Mets All-Star Matt Harvey Shares Decision on Retirement at 34 - Sports Illustrated
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Former Mets ace Matt Harvey retiring after nine seasons
2018 Washington Nationals season - Wikipedia
Former Mets star Matt Harvey announces retirement: 'Goodbye, baseball