This White Adidas Climacool Game-Issued Jersey has been personally signed by Diana Taurasi of the Phoenix Mercury. The item is 100% authentic and includes a hologram from Beckett Authentication Services (BAS). The affixed BAS authentication sticker features a scannable QR code to verify authenticity directly on the Beckett website. This is a BAS Witnessed Protection Program item, meaning a Beckett Authentication Services representative was present during the signing. Please note that Beckett no longer issues separate serial-numbered COA cards; the attached BAS sticker itself serves as the complete authentication. The jersey is a size Medium. It was obtained directly from the Phoenix Mercury, though no additional team-issued paperwork is included.