One by one, Serena Williams is matching the feats of tennis' greatest legends. Her next challenge comes at the Australian Open, which starts Monday with Williams seeking her 18th Grand Slam title - an accomplishment that would match Martina Navratilova and Chris Evert. ''It would mean a lot to be on the same level as such great players,'' Williams said in a pre-tournament news conference Saturday, quickly adding a dash of humility. At 32, an age where most professional players are in decline, Williams is playing the best tennis of her career, says Navratilova, who predicts that Williams will win in Melbourne and go on to eclipse Steffi Graf's 22 major titles in the Open era. More...