Ken Griffey Jr.'s Most Graded Cards and Their Prices. Griffey Junior is a one-of-a-kind, second-generation ball player who appeared to be destined for superstardom from birth. Aft ...

Unknown Date; Milwaukee, WI, USA; FILE PHOTO; Seattle Mariners outfielder Ken Griffey Jr ... His deal with Nike made him mainstream, on par with, dare we say Michael Jordan and Bo Jackson.