Jason Giambi: MLB Player Retires After 20 Years
Who is Jeremy Giambi's brother Jason?
Jason Giambi retiring after 20 MLB seasons
Jason Giambi - Wikipedia
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Former Rockies slugger Jason Giambi retires - Purple Row
After 20 seasons, Giambi calls it a career
Jason Giambi – Society for American Baseball Research
Jason Giambi retires, has coaching job offer from Indians - Covering the Corner
Former Royals player Jeremy Giambi dies at the age of 47 - Royals Review
Chris Ballard: Once a feared slugger, 41-year-old Jason Giambi quietly nears the end - Sports Illustrated