Sport: Australian Open 2009

Laura Robson of Great Britain serves in her junior girls semi-final match against No1 seed Noppawan Lertcheewakarn. Photograph: Clive Brunskill/Getty Images

Laura Robson celebrates winning match point in her junior girls semi-final match and the reigning Wimbledon junior girls champion is through to another final. Photograph: Clive Brunskill/Getty Images

Venus Williams serves as Serena waits at the net for the return during the women's doubles final against Daniela Hantuchova and Ai Sugiyama. Photograph: Lucas Dawson/Getty Images

Serena, left, and Venus Williams both keep an eye on the trajectory of the ball as they run backwards to get into position to make a return shot. Photograph: Joe Castro/EPA

Serena, right, and Venus Williams celebrate a winning a point. Photograph: Jason O'Brien/Action Images

Serena Williams plays the ball back over the net with a powerful backhand volley as her sister, and doubles partner, Venus looks on. Photograph: Clive Brunskill/Getty Images

The strain of playing against the Williams sisters is etched on the face of Ai Sugiyama, right, as she stretches to return the ball. Photograph: Shuji Kajiyama/AP

Serena, left, and her sister Venus vie to return the same ball. Photograph: Mark Baker/AP

Venus, left, and Serena hug as they celebrate winning championship point to win the match in straight sets 6-3, 6-3 and take their eighth grand slam women's doubles title. Photograph: Cameron Spencer/Getty Images

Venus can't hide her joy at winning the women's doubles title. Photograph: Franck Robichon/EPA

The Williams sisters are all smiles as they hold the trophy. Photograph: Rick Stevens/AP

Serena and Venus are the centre of attention as they pose with the championship trophy in front of a TV cameramen and photographers. Photograph: Ezra Shaw/Getty Images