Pyeongchang: Russian bobsledder tests positive for banned substance

Olympic bobsledder and Russian national Nadezhda Sergeeva has tested positive for a banned, performance-enhancing drug at the Pyeongchang Winter Olympics.

The Russian bobsleigh federation reported the outcome, saying the result could have an impact on the entire team.

In a post on its official Facebok page, the federation said that the athlete tested positive on February 18, five days after a prior doping test returned a negative result for her..