Jason Giambi retiring after 20-year career with A's, Yankees
Jason Giambi retires from Major League Baseball
Yankees 2-4 Athletics (Aug 12, 2001) Game Recap - ESPN
Former Rockies slugger Jason Giambi retires - Purple Row
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Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive
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Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive