World Gymnastics: USA's Simone Biles wins all-round gold

Sixteen-year-old Simone Biles from the United States becomes the world all-round champion after winning gold at the World Gymnastics Championships in Antwerp on Friday.

The gymnast overtook her compatriot Kyla Ross on the final floor exercise to win by just 0.884 marks, with Russia's Aliya Mustafina taking bronze.

Britain's Ruby Harrold and Rebecca Tunney finished 17th and 19th respectively.

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