Mariano Rivera's unanimous Hall of Fame election is a 1st that spurs a question: What did past greats do wrong?
Baseball Hall of Fame: Ken Griffey Jr., Mike Piazza get in
Ken Griffey Jr.: Road to Cooperstown by The News Tribune - Issuu
Mike Trout is the Ken Griffey Jr of this generation : r/baseball
Could Ken Griffey Jr. be baseball's first unanimous Hall of Famer? - Seattle Sports
Why wasn't Whitey Ford a first ballot MLB Hall of Famer? - Quora
First Ballot MLB Hall of Famers
ESPN - The Kid is back! Ken Griffey Jr. is revealed as the cover athlete for MLB The Show '17.
Ken Griffey Jr. elected to National Baseball Hall of Fame