Jason Giambi retires: A look back at his Athletics career
Jason Giambi retires after controversial career with Yankees, A's - Sports Illustrated
This ride's not over yet': Five years later, reliving Jason Giambi's memorable walk-off and exploring why the 2013 playoff chase still matters to the Indians - The Athletic
Jason Giambi announces retirement - MLB Daily Dish
MORE
Jed Lowrie officially retires - Athletics Nation
Ex-MLB player Jeremy Giambi 'seemed different' after baseball head injury before death by suicide
Jason Giambi retires after 20 seasons in majors
Jason Giambi - Wikipedia
Giambi Homers as Rockies Beat Yankees - The New York Times
Jason Giambi retires after 20 seasons