RIO DE JANEIRO -- A female Chinese swimmer has tested positive for a banned substance at the Rio Olympics, Chinas swimming association said Friday -- the first competitor in the sport to fail a test at the games.Chen Xinyi tested positive for the diuretic hydrochlorothiazide after she finished fourth in the womens 100-meter butterfly Sunday, missing a bronze medal by nine-hundredths of a second, the Chinese Swimming Association said. Xinhua, Chinas official state news agency, reported the story Friday.The 18-year-old also was scheduled to compete in the 50-meter freestyle beginning Friday.Chen has applied to the International Olympic Committee to have her B sample tested and to get a hearing on the matter, Xinhua said, citing the swimming association.The CSA has taken this matter seriously and demanded full cooperation from Chen in the investigation, the association said in the statement quoted by Xinhua.Doping has been a major concern in the Rio Games. Seven Russian swimmers were allowed to compete after initially being banned following reports of a huge, state-sponsored doping operation in their homeland. That decision has sparked complaints from several swimmers, most notably American Lilly King.Also, Australian gold medalist Mack Horton feuded with Sun Yang over the Chinese stars three-month suspension for using a banned stimulant in 2014. Horton called Sun a drug cheat after beating him in the 400 freestyle. Sun insisted he was clean and came back to win gold in the 200 free. They will compete again Friday in the preliminaries of the 1,500 free.No statement about Chens reported test was posted on the CSA website, and calls to its offices rang unanswered Friday. FINA, the international governing body of swimming, did not immediately respond to a request for comment.Chens teammate Wang Shun declined to comment after he won bronze in Thursdays 200-meter individual medley.This situation, I dont know the details, Wang said.Li Keke, a spokeswoman for Chinas national anti-doping agency, said she had no additional information on the Chen case.We have noticed media reports about the case. So far the anti-doping agency has yet to receive any official confirmation, Li told The Associated Press.This reported test should be generated by the organizer. The Olympic committee and FINA should know about it. At present, we will continue to monitor, Li said.Gary Redus Jersey .com) - Manchester City midfielder David Silva is expected to miss the next four weeks because of a calf problem. Barry Larkin Jersey . The Browns coaching search remains incomplete. https://www.cheapredsjerseys.us/1585s-leo-durocher-jersey-reds.html . Ferrer, trying to win his fourth title on Mexican soil, will next play South Africas Kevin Anderson, who eliminated American Sam Querrey,7-6 (2), 6-4. Also Wednesday, Gilles Simon (6) of France beat Donald Young of the United States 6-4, 6-3, Ukraines Alexandr Dolgopolov downed Frenchman Jeremy Chardy 6-3, 6-4 and Croatias Ivo Karlovic defeated Dudi Sela of Israel 7-6 (4), 6-2. Dan Driessen Jersey . -- Matt Ryan needed one of the best games of his career to lead the Falcons and their depleted offence out of their three-game losing streak last week. Jimmy Herget Jersey . Sulaiman, 44, was chosen unanimously Tuesday in a vote by the leadership, the World Boxing Council said. Sulaiman becomes the sixth president of the organization.As it stands, the Toronto Blue Jays are in position to make it into the postseason as one of the American Leagues two wild cards.So who has been their MVP this year: Josh Donaldson, Edwin Encarnacion, J.A. Happ or Aaron Sanchez? Cast your vote in the poll below (stats eentering Friday).ddddddddddddThe Blue Jays wrap up the regular season with a series against the Boston Red Sox at Fenway Park this weekend. ' ' '