Dressed as a mermaid with shells covering his nipples, Brazilian Murilo Sousa voiced hope that the record number of openly gay athletes at the Rio Games would boost acceptance in his South American nation, amid a backlash over same-sex marriage.
Russian swimmers Vladimir Morozov and Nikita Lobintsev have launched an appeal against the ruling banning them from next month's Rio Olympic Games even though they have never failed a doping test.
Jamaican Olympic sprint relay gold medallist Nesta Carter has returned an anti-doping violation for the banned stimulant Methylhexanamine after the re-testing of 454 samples from the 2008 Beijing Games, two sources familiar with the case have told Reuters. The Jamaican team of Carter, champion sprinter Usain Bolt and two other sprinters had won a gold medal in the relay at the 2008 Olympics. The sources, who spoke on condition of anonymity, said traces of Methylhexanamine were discovered in Carter's "A" sample, part of a batch of 454 from the 2008 Games that the International Olympic Committee (IOC) ordered to be re-tested. Carter could face sanctions only if his "B" sample also tests positive for the substance. Reuters has not seen the laboratory results. Neither Carter, who won gold in the 4x100 metres relay with Jamaican team mates Usain Bolt, Asafa Powell and Michael Frater in Beijing, nor his agent replied to repeated requests for comment.
Dozens of Russian athletes who competed at the 2014 Sochi Winter Olympics, including at least 15 medal winners, were part of a state-run doping program.
A group of athletes in Rio has found the secret to enhanced performance and it has nothing to do with doping.
Members of the all-women protest group Pussy Riot released a new music video on Thursday criticising Russia's staging of the Winter Olympics and its human rights record, in a rare show of dissent during the Games.
Russian teenager Alina Zagitova edged compatriot Evgenia Medvedeva with a stunning free skate on Friday that earned the Olympic Athletes from Russia a first gold at the Pyeongchang Games.