Amantle Montsho’s problems have gotten worse; her B sample drug test from the Commonwealth Games also returned positive, and now she faces a two-year ban from competition.
The 31-year-old Botswana quarter-miler was provisionally suspended after her A sample failed a doping test following the 400m final at Games in Glasgow on 29 July.
Montsho requested that her B sample to be tested, which was done at an accredited laboratory in London on 4 August and confirmed that both samples tested positive for the banned stimulant methylhexaneamine.
According to a 13 August BBC report, Montsho, a former 400m World champion who finished fourth in Glasgow, was notified of the findings and that she had the right to appeal to the Commonwealth Games Federation (CGF) by 22 August. The Federation has forwarded their results to the relevant international federations, which could ban Montsho from competition.
The CFG, the report explained, only has power to disqualify Montsho from the Games. However, if found guilty at her hearing, she will be referred to the World Anti-Doping Agency (WADA) and other relevant authorities for further sanctions.
Montsho won Commonwealth gold at Delhi 2010 and the World title in 2011.