Ken Griffey Jr, Seattle Mariners Stock Photo - Alamy

KEN GRIFFEY JR.(Seattle Mariners) 1996.k6939jw. © Jerry Wachier/Globe Photos/ZUMA Wire/ZUMA Wire/Alamy Live News Stock Photo - Alamy

April 5, 2010; Oakland, CA, USA; Seattle Mariners right fielder Ken Griffey Jr. (24) hit a

Seattle Mariners on-deck batter Franklin Gutierrez, left, watches as Ken Griffey Jr. crosses the plate on a sixth-inning home run off New York Yankees starter Andy Pettitte in the Mariners' 4-2 loss

Ken Griffey Jr, Seattle Mariners Stock Photo - Alamy

Ken Griffey Jr, Seattle Mariners Stock Photo - Alamy

Seattle mariners ken griffey jr hi-res stock photography and images - Page 2 - Alamy

Seattle Mariners' Ken Griffey Jr. watches his 624th career home run during a baseball game against the Cleveland Indians on Sunday, August 23, 2009, at Progressive Field in Cleveland, Ohio. (AP Photo/David

KEN GRIFFEY JR.(Seattle Mariners) 1997.k9033jw. © Jerry Wachier/Globe Photos/ZUMA Wire/ZUMA Wire/Alamy Live News Stock Photo - Alamy

Seattle Mariners' Ken Griffey Jr., right, walks past Felix Hernandez and onto the field before the Mariners' baseball game against the Los Angeles Angels on Tuesday, April 14, 2009, before a baseball