World Championships 2015: Wayde Van Niekerk wins 400m final

Wayde Van Niekerk runs a brilliant 43.48 seconds to post the fourth-fastest time ever and win the 400m final at the World Athletics Championships in Beijing.

It was also the first time that three men had posted sub-44 second times in the same 400m race, with American LaShawn Merrit (43.65) and Granada's Kirani James (43.78) also finishing strongly.

Britain's Rabah Yousif Bkheit finished sixth in a time of 44.68.

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