Jason Giambi retiring after 20-year career with A's, Yankees
Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive
Athletics and Yankees connections go way back
Giambi breaks out of slump in big way - Taipei Times
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Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive
Former Rockies slugger Jason Giambi retires - Purple Row
Jason Giambi retires after 20 seasons
Hideki Matsui to announce retirement - Pinstripe Alley
Jason Giambi Retires - MLB Trade Rumors
Jason Giambi says Astros sign-stealing is 'no different' than players using steroids
Jason Giambi retires after controversial career with Yankees, A's - Sports Illustrated
Jason Giambi retiring after 20-year career with A's, Yankees, Rockies and Indians – New York Daily News
Who is the best Oakland A's player not in the Hall of Fame? Moneyball Years - Athletics Nation
The 114-48 New York Yankees: Where are they now?