Jason Giambi retiring after 20-year career with A's, Yankees, Rockies and Indians – New York Daily News
Jason Giambi retires from Major League Baseball
Jason Giambi announces retirement from MLB, calls career 'incredible journey' - ESPN
Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive
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Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive
Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive
Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive
Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive