This Autographed Game Worn Purple Starter Proline Size 42 Long Jersey with the inscription of "To Shaq, A True Warrior!" has been Personally Signed by Warren Moon of the Minnesota Vikings. 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. The jersey also comes with a letter of authenticity from Sports Investors Authentication for the game use along with a letter of authenticity from Shaquille O'Neal for the provenance as well.