09:50Sporting WitnessKirsty Coventry - Zimbabwe's Golden GirlBBC World Service Duration: 9 minutes Tue 28th Mar 2017, 09:50 on BBC World Service OnlineAvailable for over a yearListen nowThe Zimbabwean swimmer who became Africa's most decorated Olympian. Show more GenresSportFormatsDocumentariesBrandSporting Witness Source: BBC Online