A second Russian has been suspected of doping at the Winter Olympics in Pyeongchang, South Korea.
Russia was banned from competing at the Games due to the revelation of state-sponsored doping. Russian athletes who could prove they were clean were approved to compete under a neutral flag.
The Russian Bobsleigh Federation said Nadezhda Sergeeva, 30, who finished 12th in the two-woman bobsleigh event, had tested positive for "a heart drug" that "was not prescribed" by its medical team.
On Thursday (22 February), Russian curler Alexander Krushelnitsky was stripped of his bronze medal after being found guilty of doping.