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Results from the games can tell us a lot about how different nations approach elite women and disabled athletes.
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The countries who regularly top the medal table spend millions on training and developing athletes, money that poorer countries simply can’t afford to spend on their sporting stars.
Refreshing – or a sentence to sweat?
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Here’s the science.
Who will you back?
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From football to the space race and folklore to the forest, here's why you should back the little guy.
A greyhound at a protest the abuse of greyhounds at the hands of the racing industry.
Jordan Rivkin/AAP
The greyhound industry has been numerous opportunities to reform like any other industry. But it failed and that why it deserves to be shut down.
Can greyhound racing be ethically justified?
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The huge numbers of unwanted dogs killed by the greyhound racing industry has led the New South Wales government to outlaw the sport.
Peak performance? How riders prepare decides their fate.
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When the road heads higher and the mercury is rising, the world’s top cyclists get to test the quality of their preparation.
The Wales team has more than just spirit.
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The beautiful game has been dominated by the best team with the worst historic record.
Using our heads. New ways to battle doping in Olympic year.
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The ban on Russian athletes at the Rio Olympics feels like a victory, but it masks an insular system which is spread too thin.
Calm down now.
EPA
Without much fuss, Canada voted to make its anthem gender neutral – but other countries don’t have it so easy.
The AFL must be prepared to take a consistent, ethical position on sexism and misogyny in the game.
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Despite efforts to make football a more inclusive game, the AFL has been long been dogged by accusations of sexism and misogyny.
It all got a bit too much for Wales fan Jamie Collins.
BBC Images
Football, cricket, athletics, rugby – whatever the sport, the tears are never far away, for both the stars and the spectators.
Bolivia midfielder Jhasmani Campos deflects a pass from Argentina forward Sergio Aguero.
Reuters
To celebrate 100 years of football’s oldest international competition, South American fans have flocked north, sticking two fingers up to Donald Trump.
Caster Semenya was withdrawn from competition in 2009 on the basis that her higher-than-normal testosterone level conferred a performance advantage.
Reuters/Mike Hutchings
Until recently, women with higher-than-expected testosterone levels were declared ineligible to take part in track and field athletics.
Ouch.
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Recovering from injury is about more than just becoming fitter and stronger - you need to go back to basics.
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A games experts explains the more complex ways to gamble on Euro 2016 and what the risks are.
France’s Olivier Giroud (right), Paul Pogba, Laurent Koscielny and Antoine Griezmann train for Euro 16.
REUTERS
France’s performance at Euro 16 could provide the country with a much needed boost – if its footballers can stand up to the test, that is.
Supporting an infant industry.
EPA/HOW HWEE YOUNG
A new industry is being created under President Xi Jinping. Meet the two men making it happen.
Hands on heads.
PA
Our reactions on the terraces show we all come from the same side.
Reigning World Cup winners Germany will prove hard to beat at this year’s European football championships.
Reuters/Darren Staples
Based on goals scored at the 2014 World Cup, goals emerge when teams develop small and rapid passing networks comprising only a few players.