Norway's Marit Bjoergen, right, and Heidi Weng compete during the women's 30K cross-country race at the 2014 Winter Olympics, Saturday, Feb. 22, 2014, in Krasnaya Polyana, Russia. (AP Photo/Matthias Schrader)
Norway's Marit Bjoergen celebrates winning the gold during the women's 30K cross-country race at the 2014 Winter Olympics, Saturday, Feb. 22, 2014, in Krasnaya Polyana, Russia. (AP Photo/Matthias Schrader)
Norway's Marit Bjoergen celebrates after winning the gold medal in the women's 30K cross-country race at the 2014 Winter Olympics, Saturday, Feb. 22, 2014, in Krasnaya Polyana, Russia. (AP Photo/Gregorio Borgia)