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On This Date: Mariners Retire Ken Griffey Jr.'s Number 24, by Mariners PR
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Ken Griffey Jr. retires at age 40
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Happy Birthday to the Kid, by Mariners PR
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Ken Griffey Jr. - Wikiwand
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Baseball Hall of Famer Ken Griffey Jr. joins Seattle Mariners' ownership group
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Who do you think had the MLB better career, Ken Griffey Jr. or Cal Ripken Jr.? - Quora
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The Skanner News - Ken Griffey Jr. Retiring at Age 40
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Ken Griffey Jr. retires at age 40 with 630 homers - The San Diego Union-Tribune
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Michael Rosenberg: After many years, Ken Griffey Jr. has managed to keep legacy intact - Sports Illustrated