LAHTI, FINLAND - MARCH 04: Marit Bjoergen of Norway leads a group in the Women's Cross Country Mass Start during the FIS Nordic World Ski Championships on March 4, 2017 in Lahti, Finland. (Photo by Richard Heathcote/Getty Images)
LAHTI, FINLAND - MARCH 04: Marit Bjoergen of Norway leads a group in the Women's Cross Country Mass Start during the FIS Nordic World Ski Championships on March 4, 2017 in Lahti, Finland. (Photo by Richard Heathcote/Getty Images)