MELBOURNE Jan 27 Brief biographies of the women's semi-finalists at the 2010 Australian Open (prefix number denotes seeding): 1-Serena Williams (U.S.) Age: 28 Grand Slam titles: 11 (Australian Open 2003, 2005, 2007, 2009, French Open 2002, Wimbledon 2002, 2003, 2009, U.S. Open 1999, 2002, 2008)
Came into the tournament with her usual injury concerns and her legs heavily strapped but has had no major health problems. Sailed into the quarter-finals without dropping a set or even a single game on serve but almost came unstuck against Victoria Azarenka before winning in three. Has already won the title four times and is a short-priced favourite to win a fifth. - - 16-Li Na (China) Age: 27 Grand Slam titles: 0
Was two points away from losing her quarter-final against Venus Williams when the American stumbled on her serve and Li seized her opportunity. Li has been a pioneer of Chinese tennis and is about to break into the top 10 rankings for the first time but faces a daunting challenge beating Serena to make the final. - - - - Justine Henin (Belgium) Age: 27 Grand Slam titles: Seven (Australian Open 2004, French Open 2003, 2005, 2006, 2007, U.S. Open 2003, 2007)
Has been the story of this year's championship after coming out of retirement earlier this month. Never even thought about winning the title but is starting to dream about it now after the draw opened for her. Still not quite as sharp as she was at her peak but has lost none of her steely determination and remains an expert at winning the tight matches. - - Zheng Jie (China) Age: 26 Grand Slam titles: 0 Progress to semi-finals:
Another trailblazer of Chinese tennis. Won the doubles here in 2006 then made the semis at Wimbledon two years later. Made a slow start to the tournament, losing the first set in each of her first three matches, but has been steadily growing in confidence and has genuine hopes of beating Henin, who was one of her idols when she was starting off. (Compiled by Julian Linden; John O'Brien; To query or comment on this story email email@example.com) (firstname.lastname@example.org; +61409121090; Reuters Messaging: email@example.com; For the sports blog Left Field go to: blogs.reuters.com/sport/))
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