Serena Williams has cemented a sensational season by ensuring she will finish an awesome 2013 at the top of the WTA rankings for the third time in her career. The American joins Justine Henin and Martina Hingis as a three-time year-end number one, with only Steffi Graf (8), Martina Navratilova (7), Chris Evert (5), and Lindsay Davenport (4) ahead of her in the history … [Read more...]