American tennis player Serena Jameka Williams was born on September 26, 1981. The Women's Tennis Association (WTA) placed her as the world No. 1 in women's singles for 319 weeks, which is the third-longest ever, and she concluded the year as the top player five times.
For 310 weeks (the second-most ever), including a record 237 weeks in a row, Roger Federer was rated as the world No. 1 in men's singles by the Association of Tennis Professionals (ATP).











