The president of the International Olympic Committee has said he is waiting for clarification from the Russian government on the anti-gay law that is overshadowing preparations for the Winter Games in Sochi.
"We are waiting for the clarifications before having the final judgement," Jacques Rogge told reporters.
"The Olympic charter is clear," Rogge said. "A sport is a human right and it should be available to all, regardless of race, sex or sexual orientation."
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New photos have emerged of Mr Corbyn appearing to make the Rabbi’ah gesture.
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The victim was visiting the US on holiday, police said.