Ken Griffey Jr. was 30 years old when he hit his 400th home run.
On September 19, 2000, on the road against the San Francisco Giants, Ken Griffey Jr. hit his 400th career home run.
ken griffey jr and ken griffey sr
Ken Griffey Jr. hit an impressive 56 homers in 1998!
Ken Griffey Jr. hit 19 home runs in 2009, and 18 home runs in 2008.
Ken Griffey, Jr., is still an active player with the Seattle Mariners. Through the 2009 season, Griffey has hit 630 career home runs.
In Seattle
Ken Griffey jr
Ken Griffey hit 18 home runs for two teams in 2008. 15 with the Reds, and 3 with the White Sox.
Ken Griffey Jr.
630
The Griffey's....Ken and Ken Jr.
Ken Griffey Jr.