Jason Giambi announces his retirement in classy statement
Jason Giambi retires after 20-year career - Sports Illustrated
Tim Wakefield, Pitcher Who Helped Boston Break the Curse, Dies at 57 - The New York Times
Jason Giambi retiring after 20-year career with A's, Yankees, Rockies and Indians – New York Daily News
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Jason Giambi announces retirement from MLB, calls career 'incredible journey' - ESPN
Jason Giambi Baseball Stats by Baseball Almanac
Jason Giambi retires after 20 MLB seasons
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Jason Giambi retires after controversial career with Yankees, A's - Sports Illustrated
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