Athletes have been dismissing the dangers of swimming in Rio de Janeiro's dirty waters, saying the risks are not great enough to alter their Olympic plans.

Despite a warning from a state environmental agency that some Olympic venues are unsafe, triathletes and paratriathletes entered the waters off Copacabana Beach Friday in an area considered "unfit" for swimming. They'll continue to compete this weekend in test events for next year's games.

Coach Pep Guardiola says he is still undecided about his Bayern Munich future.

Guardiola says he still has not decided whether to extend his contract, which runs through the end of the season.

Reigning champions Zenit St Petersburg aim to extend their perfect start to the new season when they face Terek Grozny in the Russian Premier League on Saturday. 

Andre Villas-Boas' Zenit share the lead in the Premiership with two Moscow sides, last season's runners-up CSKA and Lokomotiv, who all go into week three with a maximum six points. 

Beijing on Friday narrowly won an IOC vote for the 2022 Winter Olympic Games that secured its place in sporting history.

The Chinese capital beat Almaty of Kazakhstan by just 44 votes to 40, with one abstention, to become the first city to be awarded the summer and winter Games.

Tom Brady took the fight over his "Deflategate" suspension to social media and federal court Wednesday, and New England Patriots owner Robert Kraft backed the three-time Super Bowl MVP, saying "I was wrong to put my faith in the league."

One day after NFL Commissioner Roger Goodell rejected Brady's appeal, the star quarterback posted a 507-word statement on Facebook with his firmest denial yet, writing: "I did nothing wrong." Kraft followed with an unscheduled address to the media gathered at Gillette Stadium for the opening of training camp and the team's defense of its fourth Super Bowl championship.

The waters where Olympians will compete in swimming and boating events next summer in South America's first games are rife with human sewage and present a serious health risk for athletes, as well as for visitors to the iconic beaches of Rio de Janeiro.

An Associated Press investigation found dangerously high levels of viruses and bacteria from sewage in venues where athletes will compete in the 2016 Olympic and Paralympic water sports.

The news kids in the league can play a little bit.

Kaka and David Villa, a pair of 33-year-old international icons in their first season in Major League Soccer, showed they still have some panache to their games.

Paris Saint-Germain claimed the International Champions Cup with a 2-0 victory over Manchester United on Wednesday night at Soldier Field.

Off the field, PSG might be on the verge of scoring another victory over the Red Devils. Following the game, PSG manager Laurent Blanc said his squad is close to finishing a deal with Manchester United for talented midfielder Angel di Maria, who didn't make the trip to the U.S. for the four-match series.

Prince Ali Bin Al Hussein said on Wednesday that he thought Michel Platini, who confirmed he will run for FIFA president next year, is "not good for football and football's fans and players deserve better".

The Jordanian prince, who was beaten to the post at the head of world football's governing body by long-standing chief Sepp Blatter in May, turned on the Frenchman and said Platini, who is seen as a strong candidate, is not the man to run the sport's global affairs.

Cleaning up the dangerously polluted Guanabara Bay in the next year for sailing events is the biggest challenge facing Rio de Janeiro Olympic organizers, IOC chief Thomas Bach said Wednesday.

"This is first of all the cleaning of the bay," Bach said when asked about the problems remaining for the Rio Games which start on August 5 next year.