ˈWilliams ˌSisters BrE AmE
two US women tennis players, Venus (1980–) and Serena (1981–). Venus has won the women's competition at Wimbledon four times, the US Open twice, and the French and Australian Opens once each. Serena has won the French Open, the Australian Open three times, the US Open twice and Wimbledon twice. They are famous for being very powerful players, and also because they are African-American and tennis is a sport that has usually been played by white people in the past.