American siblings Venus and Serena Williams will play an exhibition tennis match in Johannesburg in November, it was announced on Wednesday.
Venus, a five-time Wimbledon champion, said she looked forward to facing her sister for the first time on African soil.
"We're extremely excited to be coming to South Africa," Venus said in a statement.
"After Serena's gold medal at the Olympics, her win at Wimbledon and now the US Open too, I look forward to taking my younger sister on in this exhibition tennis match."
Apart from the contest on the court, the sisters will launch the Breaking the Mould (BTM) women's campaign during their visit.
Serena, who was won 15 Grand Slam singles titles, said they hoped to make a difference as part of the BTM initiative.
"We're proud and humbled to have been chosen for the inauguration of this women's empowerment platform," Serena said.
"We hope we can help inspire South Africa's young women to break the mould too."