Newly crowned U.S. Open champion Serena Williams and sister Venus will play each other in an exhibition match on a visit to South Africa in early November.
Organizers say the Americans will also attend a coaching clinic in the Soweto township when they travel to the country in support of a women's charity. They will face each other on court for the first time in Africa at the Ellis Park Arena in Johannesburg.
Serena, who also won Wimbledon and Olympic titles in London this season, said they were "proud and humbled" to be invited to travel to South Africa.
Seven-time Grand Slam champion Venus — the 2000 Olympic champion — said "I look forward to taking my younger sister on in this exhibition tennis match in South Africa."