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.Cheap China Jerseys . -- The Sacramento Kings are set to become the first major professional sports franchise to accept Bitcoin virtual currency for ticket and merchandise purchases. Cheap NFL Jerseys . Burke is expected to miss two to three months after breaking a finger in the teams third preseason game. 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Whisenhunt said he hit it off quickly with Ruston Webster when interviewing for the job Friday night.Doubts remain over the long-term future of the Brazilian Grand Prix despite delivering a classic wet-weather race on Sunday.After multiple safety car periods and race stoppages a thrilling race unfolded at Interlagos, capped by Lewis Hamiltons dominant win and Max Verstappens lauded drive from 16th to 3rd. The popular circuit has a contract until 2020 but had an asterix alongside it when the provisional 2017 calendar was revealed in September.The other races listed as subject to confirmation were Canada and Germany, though the former appears to have been given a boost following the signing of Lance Stroll by Williams.I think we may well be able to sort Canada out, possibly, but the other two... Ecclestone told Reuters with a shrug during the Brazilian Grand Prix.As part of the existing contract, Interlagos made upgrades to thhe cramped pits and paddock area but Ecclestone has hinted this might not be enough.ddddddddddddTheyve done a good job, but it needed to be done, Ecclestone added.?According to Associated Press, race organisers fear the events deficit could increase from $4 to $10 million dollars next year due to the loss of key sponsors. The loss of Brazilian mainstay Felipe Massa, who has competed in Formula One since 2002, is also expected to hurt the event next year, with no guarantees Felipe Nasr will be driving in 2017 either.Race promoter Tamas Rohonyi told AP: If we cant bring sponsors back, then Formula One Management would have to cover that gap. That is why Formula One boss Bernie Ecclestone is worried. ' ' '