This Autographed Selig Baseball has been Personally Signed by Joe Girardi, Kyle Farnsworth, Rick Aguilera, Kevin Tapani, Sandy Alomar Sr., Jon Lieber, Jeff Huson, Mark Grace, Rene Lacheman, Jamie Arnold, Jeff Petland, Jeff Reed, Rondell White, Steve Rain, Felix Heredia, Gene Glynn, Tim Worrell, Don Baylor, Gary Matthews Jr., and seven others of the Chicago Cubs. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.