18:50Sporting WitnessBoris Becker - Teenage Wimbledon KingBBC World Service Duration: 9 minutes Tue 18th Jul 2017, 18:50 on BBC World Service AustralasiaAvailable for over a yearListen nowHow the unseeded German teenager became Wimbledon champion in 1985. Show more GenresSportFormatsDocumentariesBrandSporting Witness Source: BBC Online