Analysis of the field events in the women's athletics programme.
Wayde van Niekerk ran the fastest 400 metres since 2007 to become the first South African to win a World Championship sprint title on Wednesday.
A baffled Usain Bolt ran his worst turn ever as he barely won the 200 metres at the Adidas Grand Prix meet in a sluggish 20.29 seconds on a warm, windy day at Randall's Island in New York, on Saturday.
Brazilian Minister of Sports George Hilton says everything is on track for the 2016 Rio Games.
