U.S. Open: Getting to Know Li Na

Name: Li, Na; Country: P.R. China; Current WTA ranking: 19; Career titles: Two; Plays: Right-handed, two-handed backhand; This year's US Open has seen many new faces in the quarterfinals on the women's side, including the "upset queen" Melanie Oudin. There are only four seeds remaining at this stage, the lowest of which is Na Li from China. As the 18th seed, she has progressed smoothly through the draw, without dropping a set.   In fact, she was only pushed to a tie-breaker in her opening match of the tournament, and then only allowed four, six, and five games apiece to her next three opponents. While her wins were not in the category of "upsets," she is actually enjoying her best run in US Open so far.   She next faces the "comeback queen" Kim Clijsters, the US Open champion in 2005, who is only playing in her third tournament since returning to the women's tour this summer. Li turned professional in 1999, at the age of 17. In...