Ultimate Autographs Sports Memorabilia Mystery Box is the internet's most trusted, unique, and sought-after sports memorabilia collecting experience!

Our team of industry experts compile numerous signatures of well-known athletes and stars into a collection of boxes known as a " Mystery Box Series". The boxes are later sealed and randomized, making it nearly impossible to decipher one box from another within its series.

Collectors are then able to purchase a box from a Mystery Box Series and experience the excitement of opening their box in the comfort of their home!

Best of all, every item guaranteed to be accompanied by a certificate of authenticity from the industry's most reputable authenticators, so you have peace of mind before you buy.

LIKE WHAT YOU SEE, BUT NOT READY TO PAY THE FULL PRICE?

HEAD OVER TO THE UA LIVE BREAKS PAGE TO WIN AT A FRACTION OF THE COST!