Nadezhda Sergeeva
Kamila Valieva, of the Russian Olympic Committee, competes in the women's team free skate program during the figure skating competition at the 2022 Winter Olympics, Monday, Feb. 7, 2022, in Beijing. (AP Photo/Natacha Pisarenko)
EXPLAINER: The drug behind Russia's Olympic doping case

By Graham Dunbar And Dasha Litvinova Feb. 09, 2022 10:13 PM EST

Kamila Valieva, of the Russian Olympic Committee, trains at the 2022 Winter Olympics, Thursday, Feb. 10, 2022, in Beijing. (AP Photo/Jeff Roberson)
Russian star practices despite report of positive drug test

By Dave Skretta And Graham Dunbar Feb. 09, 2022 07:34 PM EST