Lampre's Venezuelan rider Miguel Ubeto has been suspended after testing positive for the banned "GW1516" substance, the International Cycling Union announced Wednesday. The UCI said Ubeto had tested positive for the GW1516 sulfone, a metabolic modulator, in a urine sample collected from him in an out-of-competition test on April 16.

The Australian Olympic Committee said Saturday it had introduced new rules forcing Australia's athletes and officials to truthfully answer questions put to them by the country's doping authority. The AOC said failure to cooperate with the Australian Sports Anti-Doping Authority (ASADA) would result in athletes or officials being ruled out of future Australian Olympic teams.

Former Australian cyclist Matt White said Friday he had received a back-dated six-month ban after admitting to doping during his professional career. White released a statement saying the Australian Sports Anti-Doping Authority (ASADA) had informed him of the penalty last Friday. The ban, which has already expired, began on October 13 last year and ended on April 13. The Australian Associated Press said it understood the ban was reduced from one year because White cooperated with anti-doping authorities. White said he hoped to return to a role in cycling.

Britain's Lynsey Sharp said Wednesday that drug-taking in athletics remained a "huge problem" after being awarded a belated European Championship gold medal as a result of a rival's doping offences. The 22-year-old Scottish middle-distance runner finished second in the 800 metres in Helsinki last year but is due to be promoted to gold medal after Russia's Yelena Arzhakova was banned for two years. The Russian athletics federation said Tuesday that Arzhakova had shown an "abnormal haemoglobin profile in her biological passport" and stripped her of her title.