Ken Griffey Jr. is one of Major League Baseball's most prolific home run hitters. He is now No. 9 on the all-time list, having passed Rafael Palmeiro in May 2007 with his 570th career round-tripper. Enjoy the power that is Griffey with this unique, autographed black Rawlings baseball, complete with gold stitching. Junior has signed the item in silver and it's guaranteed authentic by virtue of UDA's patented five-step process.