Maria Kirilenko of Russia serves the ball to Monica Niculescu of Romania during their match at the WTA Dubai Tennis Championships, on February 20, 2012. AFP PHOTO/KARIM SAHIB

Maria Kirilenko of Russia serves the ball to Monica Niculescu of Romania during their match at the WTA Dubai Tennis Championships, on February 20, 2012. AFP PHOTO/KARIM SAHIB

Maria Kirilenko of Russia returns the ball to Monica Niculescu of Romania during their match at the WTA Dubai Tennis Championships, on February 20, 2012. AFP PHOTO/KARIM SAHIB

Maria Kirilenko of Russia serves the ball to Monica Niculescu of Romania during their match at the WTA Dubai Tennis Championships, on February 20, 2012. AFP PHOTO/KARIM SAHIB

Maria Kirilenko of Russia reacts after scoring a point against Monica Niculescu of Romania during their Tennis match at the WTA Dubai Open in the Gulf emirate on February 20, 2012. Kirilenko won the match 6-3, 6-0. AFP PHOTO/KARIM SAHIB

Monica Niculescu of Romania prepares to serve to Maria Kirilenko of Russia during their tennis match at the WTA Dubai Open in the Gulf emirate on February 20, 2012. Kirilenko won the match 6-3, 6-0. AFP PHOTO/KARIM SAHIB

Italia's Flavia Pennetta returns to Anabel Medina Garrigues of Spain during their Tennis match at the WTA Dubai Open in the Gulf emirate on February 20, 2012. Pannetta won the matcg 6-3, 6-3. AFP PHOTO/KARIM SAHIB

Italia's Flavia Pennetta eyes the ball as she returns to Anabel Medina Garrigues of Spain during their Tennis match at the WTA Dubai Open in the Gulf emirate on February 20, 2012. Pannetta won the matcg 6-3, 6-3. AFP PHOTO/KARIM SAHIB

Italia's Flavia Pennetta returns to Anabel Medina Garrigues of Spain during their Tennis match at the WTA Dubai Open in the Gulf emirate on February 20, 2012. Pannetta won the matcg 6-3, 6-3. AFP PHOTO/KARIM SAHIB

Israeli tennis player Shahar Peer returns the ball to Oman's Fatma al-Nabhani during their Dubai WTA Open tennis match in the Gulf emirate on February 20, 2012. Shahar won 6-3, 6-1. AFP PHOTO/STR

Israeli tennis player Shahar Peer reacts during her match against Oman's Fatma al-Nabhani at the Dubai WTA Open on February 20, 2012. Shahar won 6-3, 6-1. AFP PHOTO/STR

Belarussian tennis champion Victoria Azarenka talks on her mobile phone on the first day of the Dubai WTA Open in the Gulf emirate on February 20, 2012. AFP PHOTO/KARIM SAHIB

Belarussian tennis champion Victoria Azarenka talks on her mobile phone on the first day of the Dubai WTA Open in the Gulf emirate on February 20, 2012. AFP PHOTO/KARIM SAHIB

Former world number one Caroline Wozniacki of Denmark smiles on the first day of the Dubai WTA Open in the Gulf emirate on February 20, 2012. Wozniacki hit back at Martina Navratilova for claiming that the Dane had never deserved to be top of the world rankings and also suggested she has lost respect for the 55-year-old legend, regarded by many as the greatest woman player ever, implying that her TV commentating sought to stir things up . AFP PHOTO/KARIM SAHIB

Samantha Stosur of Australia speaks during a round-table meeting on the first day of the Dubai WTA Open in the Gulf emirate on February 20, 2012, one day after Victoria Azarenka extended her domination over Stosur to win her third successive title of the year at the WTA Qatar Open, taking her 2012 record to 17 straight wins. AFP PHOTO/KARIM SAHIB

Former world number one Caroline Wozniacki of Denmark (L) walks with Belarussian tennis champion Victoria Azarenka on the first day of the Dubai WTA Open in the Gulf emirate on February 20, 2012. AFP PHOTO/KARIM SAHIB

Former world number one Caroline Wozniacki of Denmark (C) walks with Belarussian tennis champion Victoria Azarenka (L) on the first day of the Dubai WTA Open in the Gulf emirate on February 20, 2012. AFP PHOTO/KARIM SAHIB

Svetlana Kuznetsova of Russia returns the ball to Julia Goerges of Germany during their tennis match at the WTA Dubai Open in the Gulf emirate on February 20, 2012. AFP PHOTO/KARIM SAHIB

Svetlana Kuznetsova of Russia eyes the ball as she returns the ball to Julia Goerges of Germany during their tennis match at the WTA Dubai Open in the Gulf emirate on February 20, 2012. AFP PHOTO/KARIM SAHIB

Svetlana Kuznetsova of Russia returns to Julia Goerges of Germany during their tennis match at the WTA Dubai Open in the Gulf emirate on February 20, 2012. AFP PHOTO/KARIM SAHIB