This Autographed 2003 World Series Logo Oml Baseball has been Personally Signed by Aaron Boone, Alfonso Soriano, Andy Pettitte, Bernie Williams, Chris Hammond, David Dellucci, David Wells, Derek Jeter, Enrique Wilson, Felix Heredia, Gabe White, Hideki Matsui, Jason Giambi, Jeff Dodgers-Weaver, Jeff Nelson, Joe Torre, John Flaherty, Jorge Posada, Jose Contreras, Juan Rivera, Karim Garcia, Mariano Rivera, Mike Mussina, Nick Johnson, Roger Clemens, Ruben Sierra of the New York Yankees. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Steiner Sports.