Jason Giambi retiring after 20 years in Major League Baseball
Jason Giambi - Wikipedia
Ex-A's slugger Jason Giambi retiring after 20 seasons
Jeremy Giambi, Who Played for the Oakland Athletics, Dies at 47
Ex-Yankees slugger Jason Giambi on using steroids, Astros cheating
Jason Giambi: MLB Player Retires After 20 Years
Jason Giambi
Remembering the best of times with Jason Giambi - Athletics Nation
Jason Giambi, former Rockies 1B, announces retirement – The Denver