Career
She swam for Belarus at the 1996, 2000 and 2004 Olympics. In November 2005, Popchanka was cleared to swim internationally for France, following a 1-year sit-out from competition which was not waived by the Belorussian federation following her departure and last swim for Belarus at the 2004 Olympics. Since November 2005, she has competed for France.
Leading up to the 2008 Olympics, the couple lived in Edinburgh, Scotland, where Vergnoux coached from 2004-2008.
Following the 2008 Olympics, Vergnoux and Popchanka moved back to France, after Vergnoux left his coaching job in Edinburgh for one in Paris. He also served on the British Olympic Team staff for the 2008 Olympics.