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Justyna Kowalczyk of Poland reacts after crossing the finish line during the Ladies' 10km Classic Cross-Country during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Ryan Pierse/Getty Images) ( 469141967 )

A general view during the Ladies' 10km Classic Cross-Country during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Ryan Pierse/Getty Images) ( 469141565 )

(2L-R) Silver medalist Charlotte Kalla of Sweden, gold medalist Justyna Kowalczyk of Poland and bronze medalist Therese Johaug of Norway are escorted to the podium during the flower ceremony for the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469136939 )

Olga Kuziukova of Russia approaches the finish line ahead of Katerina Smutna of Austria as they compete in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469127909 )

A volunteer poses ahead of the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Richard Heathcote/Getty Images) ( 469118125 )

(L-R) Silver medalist Charlotte Kalla of Sweden, gold medalist Justyna Kowalczyk of Poland and bronze medalist Therese Johaug of Norway celebrate on the podium during the flower ceremony for the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469133357 )

A shirtless fan holds up a flag during the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Lars Baron/Getty Images) ( 469137063 )

Therese Johaug of Norway competes in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Richard Heathcote/Getty Images) ( 469132627 )

Esther Bottomley of Australia competes in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469137015 )

Justyna Kowalczyk of Poland reacts after winning the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469128521 )

Charlotte Kalla of Sweden collapses at the finish line after coming in second in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469128967 )

Mathilde Amivi Petitjean of Togo competes in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469141981 )

Two volunteers enjoy the sun before the start of the Women's Cross-Country Skiing 10km Classic at the Laura Cross-Country and Biathlon Center during the Sochi Winter Olympics February 13, 2014 in Rosa Khutor near Sochi. (KIRILL KUDRYAVTSEV/AFP/Getty Images) ( 527008924 )

Photographers line up for the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469137831 )

Astrid Uhrenholdt Jacobsen of Norway competes in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Lars Baron/Getty Images) ( 469136401 )

Aino-Kaisa Saarinen of Finland competes in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469141771 )

Stefanie Boehler of Germany reacts after competing in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469129553 )

Justyna Kowalczyk of Poland reacts after crossing the finish line during the Ladies' 10km Classic Cross-Country during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Ryan Pierse/Getty Images) ( 469133143 )

Aino-Kaisa Saarinen of Finland crosses the finish line in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469129523 )

Gold medalist Justyna Kowalczyk of Poland celebrates during the flower ceremony for the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469133367 )

Sophie Caldwell of the United States competes in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469141603 )

A crew member tends the course during the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Richard Heathcote/Getty Images) ( 469132495 )

Farzaneh Rezasoltani of Iran celebrates after competing in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469133239 )

Justyna Kowalczyk of Poland reacts after crossing the finish line during the Ladies' 10km Classic Cross-Country during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Ryan Pierse/Getty Images) ( 469133709 )

Nika Razinger of Slovenia (L) and Tetyana Antypenko of Ukraine compete in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Richard Heathcote/Getty Images) ( 469133441 )

Ida Sargent of the United States (L) and Holly Brooks of the United States compete in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Lars Baron/Getty Images) ( 469137435 )

A crew member tends the course during the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Richard Heathcote/Getty Images) ( 469133401 )

Alexandra Camenscic of the Republic of Moldova collapses at the finish line in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469133009 )

Paulina Maciuszek of Poland competes in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Richard Heathcote/Getty Images) ( 469133409 )

Katya Galstyan of Armenia competes in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469141435 )

Aimee Watson of Australia competes in the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Richard Heathcote/Getty Images) ( 469142167 )

Yulia Tchekaleva of Russia (L) and Charlotte Kalla of Sweden cross the finish line the Women's 10 km Classic during day six of the Sochi 2014 Winter Olympics at Laura Cross-country Ski & Biathlon Center on February 13, 2014 in Sochi, Russia. (Photo by Harry How/Getty Images) ( 469129367 )