KUALA LUMPUR: Chinese women’s badminton player Yu Xiaohan was hit with a retroactive seven-month ban after she was found last year to have ingested a prohibited substance, the Badminton World Federation said Friday. The sport’s governing body said the ban is now considered to have been served and her eligibility restored with immediate effect. A testing sample given by Yu at the Summer Universiade competition in Gwangju, South Korea last July showed the presence of sibutramine, a drug used to treat obesity. Yu, a doubles player, says she took the substance inadvertently via a supplement, a claim the BWF has accepted. Yu had received a provisional suspension in September pending a review by the doping panel. The discovery of the violation resulted in Yu being stripped of a pair of doubles silver medals at the games in South Korea.