VIA:  WilliamsSisters.org Professional tennis players. Serena Williams Born September 26, 1981, in Saginaw, Michigan. With her older sister, Venus, Williams born June 17, 1980 in Lynwood California took the tennis world by storm beginning in the late 1990s. The sisters harnessed their powerful groundstrokes and booming serves to rise in the rankings in both women’s […]