Romanian Olympic weightlifting bronze medallist Gabriel Sincraian tests positive for the banned substance testosterone.
The Russian weightlifting federation appeals to the Court of Arbitration for Sport over its ban from this month's Rio Olympics.
Mongolian weightlifter Chagnaadorj Usukhbayar is thrown out of Rio Olympics after testing positive for testosterone.
Ukranian weightlifter Yuliya Kalina is ordered to return her 2012 Olympic bronze medal after testing positive for a banned substance.
Kyrgyzstan weightlifter Izzat Artykov is stripped of his Rio bronze medal after testing positive for a banned substance.