Ken Griffey Jr. of the Cincinnati Reds bats during 7-6 victory over the Los Angeles Dodgers at Dodger Stadium in Los Angeles, Calif. on Wednesday, Jul Stock Photo - Alamy

Cincinnati Reds' Ken Griffey Jr. bunts during a baseball game against the Washington Nationals, Thursday, May 24, 2007, in Cincinnati. Catcher Brian Schneider is at right. (AP Photo/Al Behrman Stock Photo - Alamy

Cincinnati Reds' Ken Griffey Jr. scores from first on a double by Adam Dunn as St. Louis Cardinals' Yadier Molina can't keep a handle onthe ball in the ninth inning of their

Seven baseball bats. Six aluminum and one wooden Ken Griffey Jr Louisville Slugger - AAA Auction and Realty

Cincinnati Reds' Ken Griffey Jr. bats against the St. Louis Cardinals in a baseball game, Tuesday, June 10, 2008, in Cincinnati. (AP Photo/Al Behrman Stock Photo - Alamy

Cincinnati Reds' Ken Griffey Jr. in the on deck circle during a baseball game against the San Diego Padres, Saturday, Aug. 11, 2007, in Cincinnati. (AP Photo/David Kohl Stock Photo - Alamy

Cincinnati Reds' Ken Griffey Jr. reacts after he hit a game-winning two-run home run against the Los Angeles Dodgers during the 13th inning, Thursday, Aug. 1, 2002, in Cincinnati. Cincinnati won 6-4. (

Cincinnati Reds' Ken Griffey Jr. (3) leaves the dugout with Reds manager Jim Narron, right, and teammate Adam Dunn, left, after an MLB baseball game against the Seattle Mariners Sunday, June 24

Cincinnati Reds' Ken Griffey Jr. (3) is congratulated by Alex Gonzalez (2) after Griffey hit a two-run home run off Milwaukee Brewers pitcher Dave Bush in the second inning of a baseball