Featured is a Mia Hamm signed USA soccer ball. This ball has been hand signed by Hamm and comes with the Beckett witnessed hologram and certificate of authenticity. This ball would make a great addition to any sports memorabilia collection. 100% Guaranteed Authentic Autographs. Sign up for our Sports Integrity Newsletter for deals and upcoming autograph signings! Sign up to receive special insider notifications of deals and upcoming autograph signings! Mia Hamm Signed Red USA Womens Soccer Ball BAS ITP. Questions about this item? My about us text goes here. My authenticity guarantee text goes here.