Derek Jeter, Mariano Rivera, Andy Pettitte & Jorge Posada Signed

Core 4 reunited before Yankees' home opener – Daily Freeman

Derek Jeter Mariano Rivera Jorge Posada & Andy Pettitte Autographed Jersey

Jeter returns as Yankees honor 1998 team at Old-Timers' Day, Boone booed by some

Andy Pettitte Derek Jeter Jorge Posada & Mariano Rivera New York Yankees Autographed Core Four Baseball

A Core Four Farewell: Jeter, Rivera, Pettite and Posada praise A-Rod - NBC Sports

Derek Jeter, Mariano Rivera, Andy Pettitte & Jorge Posada Signed Yankees Core Four Majestic Authentic Jersey Limited Edition #4/27 (Steiner COA)

Core 4 reunited before Yankees' home opener

Can the Yankees avoid complacency in 2010? - Newsday

Old Guard Pushes for a Seventh World Series - The New York Times

2002 New York Yankees - Team Yearbook #NYYA - Jorge Posada, Andy Pettitte, Jason Giambi, Roger Clemens, Bernie Williams, Derek Jeter, Mariano Rivera

New York Yankees Derek Jeter Mariano Rivera Andy Pettitte Jorge Posada wood print by Iconic Images Art Gallery David Pucciarelli. Bring your artwork

New York Yankees Derek Jeter Mariano Rivera Andy Pettitte Jorge Posada Wood Print

Lot of (4) New York Yankees Core Four OML Baseballs Signed by (4) with Derek Jeter