Comes with JSA certificate of authenticity and matching sticker verified on their website. Comes with a certificate of authenticity. Free Shipping on eligible orders, Tyrann Mathieu Autographed Kansas City Chiefs Super Bowl 54 LIV Signed Football 8x10 Framed Photo JSA COA at Sports Collectibles Store, Super Bowl 54 Champion of the Kansas City Chiefs Tyrann Mathieu has autographed this 8x10 photo taken right after their Super Bowl win. JSA is one of the world's leading authenticator of autographs, the Chiefs their 1st Super Bowl victory in 50 years, It is a "witness" COA, Shop Tyrann Mathieu Autographed Kansas City Chiefs Super Bowl 54 LIV Signed Football 8x10 Framed Photo JSA COA and more authentic. Autograph is authenticated by James Spence Authentication, meaning a representative from JSA was present for the signing with him and witnessed him signing your item, Frame measures 13x16 and comes ready to hang. JSA, autographed and game-used items at 's Sports Collectibles Store.