French foil fencer Ysaora Thibus tested positive for ostarine. The product is banned by the World Anti-Doping Agency for 20 years.
Ostarine is a sort of version 2.0 of steroids which has been on the list of permanently banned substances since 2008. In the absence of free sales in France, you have to go through the Internet to obtain them, most often from China. If the Habs' guilt is proven, it risks up to four years of suspension.