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German tennis player Bettina Bunge pictured in action competing to reach the third round of the Ladies' Singles tournament at the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis Club in Wimbledon, London in June 1980. (Photo by Leo Mason/Popperfoto via Getty Images)

German tennis player Bettina Bunge pictured in action competing to reach the third round of the Ladies' Singles tournament at the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis Club in Wimbledon, London in June 1980. (Photo by Leo Mason/Popperfoto via Getty Images)