Jason Giambi retiring after 20 years in Major League Baseball
Jason Giambi announces retirement from MLB, calls career 'incredible journey' - ESPN
Jason Giambi Reinvents Himself, and Baseball Is Intrigued - The New York Times
Athletics Eric Chavez and Jason Giambi make Hall of Fame ballot
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Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive
Jason Giambi retiring after 20-year career with A's, Yankees, Rockies and Indians – New York Daily News
Jason Giambi PSA AutographFacts℠
Ex-Yankees slugger Jason Giambi on using steroids, Astros cheating
Jason Giambi retires: A look back at his Athletics career - Athletics Nation
Jason Giambi retires after 20 MLB seasons - Mangin Photography Archive
Dirtbag Minor League Report - Long Beach State University Athletics