Ex-world champ Santos tests positive

Former world champion gymnast Daiane dos Santos tested positive for Furosemide during a non-competition doping control in July.

Germany's Fabian Hambuechen celebrates after the rings competition during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Overall winner, Russia's Maxim Devyatovskiy, left, celebrates with Germany's Fabian Hambuechen during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Russia's Maxim Devyatovskiy performs on the rings during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Overall winner, Russia's Maxim Devyatovskiy, right, embraces Germany's Fabian Hambuechen during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Britain's Daniel Keatings performs on the rings during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Russia's Maxim Devyatovskiy performs on the parallel bars during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Russia's Maxim Devyatovskiy performs on the high bar during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Romania's Flavius Koczi performs on the rings during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Russia's Maxim Devyatovskiy celebrates after beeing overall winner of the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Joseph Hagerty from the U.S. performs on the floor during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Romania's Flavius Koczi performs on the rings during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Germany's Fabian Hambuechen celebrates after the high bar competition during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

Overall winner, Russia's Maxim Devyatovskiy, right, kisses Germany's Fabian Hambuechen during the gymnastics "Champions Trophy" in Stuttgart, Germany, on Sunday, Nov. 15, 2009. (AP Photo/Daniel Maurer

...from The Netherlands performs on his way to win the men's high bar competition during the gymnastics world cup "DTB -Pokal" in Stuttgart, Germany, on Saturday, Nov. 14, 2009. (AP Photo/Daniel Maurer