Jason Giambi Signed Oakland Athletics Jersey (JSA COA) 5xAll-Star (200 – Super Sports Center
JASON GIAMBI Signed Oakland ATHLETICS 8x10 PHOTO w/ Beckett COA (BAS)
1999 Topps #324 Jason Giambi VG Oakland Athletics - Under the Radar Sports
Ex-Athletics star Jason Giambi announces retirement
Rockies' Jason Giambi finds tranquil path on baseball's rocky road – The Denver Post
The 'Moneyball' A's Find a New Inefficiency: Other Teams' Players - WSJ
1997 Topps #209 Jason Giambi NM-MT Oakland Athletics Baseball : Collectibles & Fine Art
Ex-MLB player Jeremy Giambi 'seemed different' after baseball head injury before death by suicide
Oakland A's News: HoF 2023: Giambi, Lansford, Tenace, Johnson, Steele - Athletics Nation