London, England (Sports Network) - Russian track cyclist Victoria Baranova has been sent home from the London Olympics after testing positive for testosterone.

In a test conducted July 24 by the IOC, Baranova's sample triggered a positive result for testosterone, International Cycling Union spokesperson Enrico Carpani said in an email.

The email also said that Baranova admitted to doping after her "B" sample was analyzed Wednesday, and she was sent home Thursday morning by the Russian National Olympic Committee.

Baranova, a sprinter, did not compete in any event at these games.

08/03 17:11:33 ET