Matt Harvey retirement: Former Mets pitcher announces he's leaving baseball at age 34 - DraftKings Network
Matt Harvey, the Mets' 'Dark Knight,' retires at 34
Former Mets All-Star pitcher Matt Harvey announces retirement
Max Scherzer and Matt Williams on Matt Harvey, Nationals' 4-0 loss to the Mets - Federal Baseball
Former Mets ace Matt Harvey announces retirement: 'Believe me I wish I could have done more'
Matt Harvey Announces Retirement After 9 Seasons with Mets, More: 'Goodbye, Baseball', News, Scores, Highlights, Stats, and Rumors
Pitcher Matt Harvey Retires, Ending Hyped Career That Fell Short Of Its Promise
Matt Harvey announces his retirement from MLB
Mets' Harvey Nurtured His Promise at Home - The New York Times