Retired US shot put champion Kevin Toth has been banned for two years by the US Anti-Doping Agency after testing positive for the designer steroid THG.
Toth is the latest American to be banned
Toth also tested positive for the stimulant modafinil at the US Championship in Stanford in June 2003.
The 36-year-old, who retired in February, failed tests in July and at the World Championships in August.
Last week, American hammer throwers Melissa Price and John McEwen were banned after testing positive for THG.