Natalia Lovtsova became the third Russian swimmer to be banned for doping in two days on Saturday when she was found guilty of breaching anti-doping regulations by the country's anti-doping agency, RUSADA.
Lovtsova, 24, a member of the Russian 4x100-meter freestyle relay team at last year's London Olympics, was banned for 2 1/2 years starting from Nov. 30, 2012, the agency said on its website.
On Thursday, RUSADA banned European short-course record holder 23-year-old Ksenia Moskvina for six years after she failed a drugs test for the second time in three months.
Also on Thursday, 19-year-old Yekaterina Andreyeva, who won silver at the first Youth Olympics in 2010 and was also a member of the Russian 4x100-meter freestyle relay team in London, was banned for 18 months for a breach of anti-doping regulations.
The federation said in a statement on Friday that Moskvina has repeatedly failed to provide reliable information about her daily whereabouts for possible drug testing.
Moskvina, a backstroke specialist, placed 14th in the 100-meter event at the 2008 Olympics and 13th in the 50 at the 2011 world championships.
Material from The Associated Press is included in this report.
