David Cone throws a perfect game for the New York Yankees in 1999
Yankees pitcher Domingo Germán throws 1st perfect game since 2012 - Clearwater Times
Yankees' Domingo Germán throws perfect game in Oakland, the 24th in MLB history, Sports
Oral history of David Cone's perfect game
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Germán throws MLB's 24th perfect game
Oral history of David Cone's perfect game
David Cone throws a perfect game for Yankees on Yogi Berra Day at the Stadium in 1999 – New York Daily News
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Hobby Q&A: David Cone revisits his perfect game - Beckett News