This Autographed PSA Game Used Graded 9! Black Louisville Slugger P72 Player Model Baseball Bat with the inscription of "Game Used 9-18-06 Career HR #463" has been Personally Signed by Alex Rodriguez of the New York Yankees. This item is 100% Authentic and comes with a PSA/DNA Certification Card and a matching numbered Hologram. The authenticity can be verified on Professional Sports Authenticator website.