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Rio 2016: Wayde van Niekerk smashes Michael Johnson's 400m world record to clinch gold | Olympics 2016 | Sport | Express.co.uk
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Watch Wayde van Niekerk smash Michael Johnson's 400m world record to claim gold at Rio 2016 Olympics - Mirror Online
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European Athletics on Twitter: "WORLD RECORD!!!!!! 🔥🔥🔥 49.26 for Femke Bol in the 400m at the Dutch Indoor Championships! https://t.co/8U6TdpZyKn" / Twitter
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