A basketball card featuring Hall of Famers Michael Jordan and Kobe Bryant has become the most valuable basketball card ever.

PSA has graded more than 1.7 million Michael Jordan basketball cards in its history. Five Jordan cards have been graded more than 30,000 times by the company. Those cards help tell the story of arguably the greatest career in NBA history.

The 2007 Upper Deck Exquisite Michael Jordan-Kobe Bryant Logoman Autograph 1/1 will become the most expensive basketball card sold at public auction when bidding closes at Heritage Auctions later this month.