Big Read: Have the New York Yankees found a new Core Four?
The top 10 Core Four moments of the 2010s, Bronx Pinstripes
James G. Ferrara - Core Four
2014 Troy Baseball Media Guide by Troy University Athletics - Issuu
2011 Baseball Media Guide by Troy University Athletics - Issuu
How Free Agency Changed the Course of Baseball's Labor History - In These Times
Charitybuzz: New York Yankees The Core Four Signed World Series Ring Display
Bleeding Yankee Blue: GREATNESS TODAY WITH THE CORE FOUR
Core Four return for ceremonial first pitch
Derek Jeter's road to immortality