The head of Russia's Anti-doping Laboratory Grigory Rodchenkov has resigned a day after a report by the World Anti-doping Agency accused Russia of widespread cheating in athletics.

世界反兴奋剂机构一份报告指控俄罗斯运动员中广泛存在作弊现象一天之后，俄罗斯反兴奋剂实验室负责人格里高利·罗德其科夫博士(Grigory Rodchenkov)辞职。