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About US

Welcome to GrandSlamSportsMemorabilia.com – an online store that helps sports fans & collectors expand their passion about sports, favorite teams, or athlete. We only offer AUTHENTIC autographed sports memorabilia that make the perfect gift for yourself or someone special in your life. As a passionate sports fan I know the joy that comes with owning that special jersey, ball, or picture of your favorite athlete or team.

Our mission is to help you buy authenticated autographed hand-signed sports memorabilia at a FAIR PRICE. We can offer much lower prices for the same items found at the larger retailers because we are a small business with much less overhead expenses. As a passionate sports fan I started this business so anyone can own authentic autographed sports memorabilia.  We only sell items that have a Certificate of Authenticity (COA) from companies that have decades of solid reputation in the sports memorabilia business.

We guarantee the authenticity of our autographed items along with their seals of authenticity from PSA/DNA, JSA, Beckett, Schwartz Sports, and Upper Deck.

We are a small business located in Carlsbad, CA

Your Satisfaction Is Our Goal - Contact Us if you have any concerns.