Thirteen medallists in Baku European Games found to have taken meldonium

Up to 490 athletes may have been taking meldonium during the 2015 European Games in Baku, according to research published in the British Journal of Sports Medicine.

Meldonium was placed on the World Anti-Doping Agency's banned list for 2016 and a number of athletes have already tested positive for it, including tennis star Maria Sharapova.