Jordan's cards have been graded an astounding 1.59 million times - the second-most graded athlete is Ken Griffey Jr., whose cards have been graded just a little more than 750,000 times.

We'll look at his most-graded cards, including those bearing his former name, Cassius Clay, and their current prices. Rudy Clay holds up his brother Cassius arm with a No. 1 salute, as he visits ...