Veteran right-hander Haren calls it a career
MLB rumors: Ex-Yankees, Mets left-hander announces retirement
David Freese announces retirement from MLB - NBC Sports
Former All-Star pitcher Jon Lester announces retirement after 16
Bartolo Colón celebrated for 21-year career, announcing retirement
Pitcher Trevor May retires, criticizes Athletics owner John Fisher
Former Atlanta Braves lefty reliever Luis Avilán announces retirement
Former MLB pitcher known as 'The Dark Knight' announces his
Former All-Star RHP announces retirement
Former Gator Darren O'Day Announces Retirement after 15 Years