Damen-Weltrangliste: Viktoria Wer?

REUTERSNovak Djokovic of Serbia reacts after falling to the ground from a long rally in the fifth set against Rafael Nadal of Spain at the Australian Open tennis tournament in Melbourne January 30, 2012. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SPORT TENN

dapdVictoria Azarenka of Belarus poses with her trophy on the banks of the Yarra River following her win over Russias Maria Sharapova in the womens singles final at the Australian Open tennis championship, in Melbourne, Australia, Sunday, Jan. 29, 2012. (

REUTERSCaroline Wozniacki of Denmark hits a return to Petra Kvitova of the Czech Republic during their WTA tennis championships match in Istanbul, October 27, 2011. REUTERS/Murad Sezer (TURKEY - Tags: SPORT TENNIS)

dapdKim Clijsters, from Belgium, eyes a return to Ana Ivanovic, of Serbia, at the Sony Ericsson Open tennis tournament in Key Biscayne, Fla., Tuesday, March 29, 2011. (Foto:J Pat Carter/AP/dapd)

REUTERSCaroline Wozniacki of Denmark hits a return during her match against Andrea Petkovic of Germany at the Sony Ericsson Open tennis tournament in Key Biscayne, Florida March 28, 2011. REUTERS/Hans Deryk (UNITED STATES - Tags: SPORT TENNIS)

dapdFILE- In this July 1, 2010, file photo, Serena Williams of the United States, hits a return to Petra Kvitova of the Czech Republic, at the All England Lawn Tennis Championships at Wimbledon. In a statement e-mailed to the AP by her agent, the younger

EPAepa01876849 Ana Ivanovic of Serbia looks down after being defeated at her first round match by Lucie Safarova of the Czech Republic for the Toray Pan Pacific Open Tennis Tournament, in Tokyo, Japan, 27 September 2009. EPA/FRANCK ROBICHON

REUTERSTennis player Maria Sharapova poses with a dog belonging to a reporter while granting interviews during a promotional event in New York, August, 20 2008. REUTERS/Lucas Jackson (UNITED STATES)

REUTERSVictoria Azarenka of Belarus poses with her Australian Open tennis tournament womens singles trophy and the trophy for being WTA world number one beside the Yarra River in Melbourne January 29, 2012. REUTERS/Toby Melville (AUSTRALIA - Tags: SPORT T