Russian doping case: How did we get here?

Kamila Valieva, of the Russian Olympic Committee, leaves the ice after a training session at the 2022 Winter Olympics, Sunday, Feb. 13, 2022, in Beijing. (AP Photo/David J. Phillip)

Coach Eteri Tutberidze, left, talks to Kamila Valieva, center, of the Russian Olympic Committee, during a training session at the 2022 Winter Olympics, Sunday, Feb. 13, 2022, in Beijing. (AP Photo/David J. Phillip)

Kamila Valieva, of the Russian Olympic Committee, falls during a training session at the 2022 Winter Olympics, Sunday, Feb. 13, 2022, in Beijing. (AP Photo/David J. Phillip)