This shirt has been professionally authenticated by Beckett Authentication Services (BAS), making it a superb addition for collectors and football memorabilia fans. Item Details: (SIZE MEDIUM) Hand signed by Javier Zanetti Beckett Authentication Services (BAS) certified Authentication sticker/certificate included Excellent condition for display or collection Genuine original autograph – not a print Authentication The autograph has been verified by Beckett Authentication Services (BAS). Buyers can confirm authenticity directly through the Beckett authentication database using the serial number on the hologram/certificate.