Sotherton initially finished fifth in the heptathlon but had already been retrospectively upgraded to fourth after silver medallist Lyudmila Blonska tested positive for anabolic steroid methytestosterone during the Games.
The 40-year-old claimed bronze in Athens in 2004 and had been tipped to win gold in the Bird's Nest and will now receive her medal nine years later following re-retesting.
“Tatyana Chernova, 29, of Russia, competing in the women's heptathlon event in which she ranked 3rd and for which he was awarded a bronze medal, has been disqualified from the Olympic Games Beijing 2008,” read a statement on the IOC’s website.
“Re-analysis of Chernova's samples from Beijing 2008 resulted in a positive test for the prohibited substance dehydrochloromethyltestosterone (turinabol).”
More than 100 athletes have had positive results in re-tests of samples taken during the London 2012 and Beijing 2008 Olympics conducted by the IOC.
The re-testing programme is part of the IOC's efforts to catch cheats using newer testing methods or looking for substances that were not known at the time of past Olympics, and to prevent them from competing in future Games.
Samples are stored for a decade, and for the 2008 and 2012 re-tests Russia has had the most positive cases per nation.
With additional reporting Reuters
Read the original article on Eurosport: Sotherton upgraded to Olympic bronze after Chernova doping disqualification