Should we be promoting mass participation sports at all costs or should we concentrate on medal-winning niche sports?
With raw sewage and debris from favelas often washing into the sea safety fears have been raised for the sea sports in the Rio Games.
Olympic rower James Cracknell tells ITV he is ready for new challenges after a life-changing accident in 2010, but wants his old self back.
Wimbledon champion Andy Murray has said he hopes that "everyone else fails" before Team GB's Jenny Jones won a bronze medal in the snowboarding heat at the Sochi Winter Olympics.
Jenny jones! Is it wrong to hope everyone left falls?
Team GB's Jenny Jones has won Britain's first medal at the Sochi Olympic Games.
She came third in women's snowboarding slopestyle, taking the bronze medal.
She has taken Britain's first Olympic medal on snow.
Gay rights campaigners have staged protests around the world against Russia's new anti-gay propaganda laws with less than forty eight hours to the Winter Olympics in Sochi.
In Sochi itself, gay people who live there claim they are forced to live secret lives to avoid persecution, as ITV News Sports Editor Steve Scott reports:
The International Olympic Committee (IOC) are complicit in one of Russia's anti-gay measures because they are have "gone along" with the banning of an LGBT "social meeting space", according to a leading gay rights campaigner.
Peter Tatchell told Daybreak the IOC had "allowed the ban to stand" while claiming they were anti-discrimination.
The President of the International Olympic Committee Thomas Bach has accused world leaders of using the Winter Olympics in Sochi as a political platform "on the backs of the athletes" and snubbing the Games without even being invited.
In a hard-hitting speech, Bach called out politicians for using the Olympics to make an "ostentatious gesture" serving their own agendas.
His comments appeared to be directed at US President Barack Obama and European politicians who have taken stands against Russia's law banning gay "propaganda" among minors.
The Olympics should not be "used as a stage for political dissent or for trying to score points in internal or external political contests," Bach said.
"Have the courage to address your disagreements in a peaceful direct political dialogue and not on the backs of the athletes," he said at a ceremony attended by Russian President Vladimir Putin.
Russia's "anti-gay" laws will be in the spotlight today with human rights groups holding a global day of action before the start of the Winter Olympics in Sochi.
Protests against the country's gay rights record will be held in London, Sochi, Moscow and Rio de Janeiro, just a day before events get underway and only 48 hours ahead of the opening ceremony.
There will be a rally outside Downing Street today by group All Out, who will be calling on Olympic sponsors to speak out against homophobia in Russia.
Activists sat on toilets along Rio de Janeiro's famed Ipanema beach to protest against the lack of basic sanitation in the Brazilian city.
The protest organisers, Meu Rio (My Rio), said the toilets represented the thousands of litres of untreated sewage that ends up into the sea waters of Rio everyday.
Activists carved out silhouettes of bacteria and other micro-organisms, carried to the beach in sewage, on the sand.
These beaches are set to host several of Rio's events at the 2016 Olympics and Paralympics.
Rio's state government has pledged that the city's waterways will be clean in time for the 2016 Olympics.
The city's Olympic committee has promised that pollution will also be reduced.
A four-year target of raising £11 billion worth of economic benefit from the London Olympics has been met in 12 months, the Government has announced.
The country has benefited from new foreign investment, additional sales and firms winning contracts since last summer's events, according to a report.
The total includes £130 million of contracts won by UK companies for next year's soccer World Cup in Brazil, and the next Olympic Games, in Rio in 2016.