Matt Harvey, the Mets' 'Dark Knight,' retires at 34 Kansas City
Mets' Matt Harvey shouldn't hang the media out to dry – New York
Matt Harvey announces retirement
Dark Knight returns: Harvey, Orioles lose to Mets 7-1
Mets and Matt Harvey Part Ways - The New York Times
Matt_Harvey
Former Mets ace Matt Harvey retiring after nine seasons
Former Mets ace Matt Harvey retiring after nine seasons
Former Mets star pitcher Matt Harvey announces retirement - ESPN
The Dark Knight Returns: Matt Harvey Returns to Face Mets Tomorrow
Ex-Mets star Matt Harvey announces retirement from baseball
Matt Harvey - Wikipedia
Dark Knight returns: Harvey, Orioles lose to Mets 7-1
Remembering Matt Harvey's Mets career