Serena becomes world number two

Serena Williams has moved up five places to second in the world rankings after her Australian Open win.

Williams won her first Grand Slam title since 2003 with victory over Lindsay Davenport, the world number one. Men's champion Marat Safin remains fourth in the ATP rankings while beaten finalist Lleyton Hewitt replaces Andy Roddick as world number two. Roger Federer retains top spot, but Safin has overtaken Hewitt to become the new leader of the Champions Race. Alicia Molik, who lost a three-set thriller against Davenport in the quarter-finals, is in the women's top 10 for the first time in her career. Her rise means Australia have a player in the top 10 of the men's and women's rankings for the first time in 21 years. And Britain's Elena Baltacha, who qualified and then reached the third round, has risen to 120 in the world - a leap of 65 places and her highest ranking yet.