Ana Ivanovic of Serbia hits a return against Maria Sharapova of Russia in their women's singles final at the Australian Open tennis tournament in Melbourne, 26 January 2008. Sharapova was leading 4-2 as play continues. AFP PHOTO / TORSTEN BLACKWOOD (Photo credit should read TORSTEN BLACKWOOD/AFP/Getty Images)

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Russian tennis player Maria Sharapova drops to the court as she celebrates victory after her womens singles final match against Serbian opponent Ana Ivanovic at the Australian Open tennis tournament in Melbourne, 26 January 2008. Sharapova won 7-5. 6-3. . AFP PHOTO/William WEST (Photo credit should read WILLIAM WEST/AFP/Getty Images)

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Serbia's Ana Ivanovic attends a news conference at the Qatar Open tennis tournament in Doha February 21, 2008. Ivanovic retired after injuring her ankle in her last game against Belarus' Olga Govortsova. REUTERS/ Fadi Al-Assaad (QATAR)

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Serbia's Ana Ivanovic attends a news conference at the Qatar Open tennis tournament in Doha February 21, 2008. Ivanovic retired after injuring her ankle in her last game against Belarus' Olga Govortsova. REUTERS/ Fadi Al-Assaad (QATAR)

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Top seed Ana Ivanovic of Serbia holds a press conference in Doha on February 21, 2008. For the first time in her career, Ivanovic has withdrawn injured after only one match of her bid to win the 2.5 million Qatar Open. The Australian Open finalist from Serbia sustained damage to her left ankle yesterday only four points from the end of a straight sets victory over Olga Govortsova. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

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Top seed Ana Ivanovic of Serbia speaks during a press conference in Doha on February 21, 2008. For the first time in her career, Ivanovic has withdrawn injured after only one match of her bid to win the 2.5 million Qatar Open. The Australian Open finalist from Serbia sustained damage to her left ankle yesterday only four points from the end of a straight sets victory over Olga Govortsova. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

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Top seed Ana Ivanovic of Serbia speaks during a press conference in Doha on February 21, 2008. For the first time in her career, Ivanovic has withdrawn injured after only one match of her bid to win the 2.5 million Qatar Open. The Australian Open finalist from Serbia sustained damage to her left ankle yesterday only four points from the end of a straight sets victory over Olga Govortsova. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

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Olga Govortsova from Belarus returns the ball to Serbia's Ana Ivanovic during their tennis match on the third day of the 2.5 million dollar Qatar Open WTA tournament in Doha on February 20, 2008. Ivanovic won 6-3, 6-1. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

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Olga Govortsova from Belarus returns the ball to Serbia's Ana Ivanovic during their tennis match on the third day of the 2.5 million dollar Qatar Open WTA tournament in Doha on February 20, 2008. Ivanovic won 6-3, 6-1. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

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Serbia's Ana Ivanovic serves to Olga Govortsova from Belarus during their tennis match on the third day of the 2.5 million dollar Qatar Open WTA tournament in Doha on February 20, 2008. Ivanovic won 6-3, 6-1. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)

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Russia's Australian Open winner Maria Sharapova announces her withdrawal from the Dubai Tennis Championships due to a viral illness, at a press conference on the second day of the WTA Dubai Tennis Championships on February 26, 2008. AFP PHOTO/STR (Photo credit should read -/AFP/Getty Images)

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Russia's Australian Open winner Maria Sharapova announces her withdrawal from the Dubai Tennis Championships due to a viral illness, at a press conference on the second day of the WTA Dubai Tennis Championships on February 26, 2008. AFP PHOTO/STR (Photo credit should read -/AFP/Getty Images)

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Russia's tennis champion Maria Sharapova is seen during a press conference in Dubai during which she announced on February 26, 2008 her withdrawal from the WTA Dubai Tennis Championships due to a viral illness. Sharapova hopes to rival world number one Justine Henin this year despite deciding to withdraw from the Dubai Open on the second day of the tournament because of a virus, she said. The Australian Open champion played all the way through the Doha tournament with the same virus, she claims, and felt worse when she woke up in Dubai yesterday. AFP PHOTO KARIM SAHIB (Photo credit should read KARIM SAHIB/AFP/Getty Images)

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DUBAI, UNITED ARAB EMIRATES - FEBRUARY 26: Maria Sharapova of Russia answers questions from the media after she decided to pull out of the tournament during day two of the WTA Barclays Dubai Tennis Championships at the Dubai Tennis Stadium on February 26, 2008 in Dubai, United Arab Emirates. (Photo by Julian Finney/Getty Images)

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DUBAI, UNITED ARAB EMIRATES - FEBRUARY 26: Maria Sharapova of Russia answers questions from the media after she decided to pull out of the tournament during day two of the WTA Barclays Dubai Tennis Championships at the Dubai Tennis Stadium on February 26, 2008 in Dubai, United Arab Emirates. (Photo by Julian Finney/Getty Images)

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Russia's Maria Sharapova looks down after a press conference, to announce her withdrawal from the Dubai Tennis Championships due to a viral illness, on the second day of the WTA Dubai Tennis Championships February 26, 2008. REUTERS/Steve Crisp (UNITED ARAB EMIRATES)

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Russia's Maria Sharapova talks to the press during a press conference, to announce her withdrawal from the Dubai Tennis Championships due to a viral illness, on the second day of the WTA Dubai Tennis Championships February 26, 2008. REUTERS/Steve Crisp (UNITED ARAB EMIRATES)

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Russia's Maria Sharapova talks to the press during a press conference, to announce her withdrawal from the Dubai Tennis Championships due to a viral illness, on the second day of the WTA Dubai Tennis Championships February 26, 2008. REUTERS/Steve Crisp (UNITED ARAB EMIRATES)

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Russia's Maria Sharapova looks up during a press conference, to announce her withdrawal from the Dubai Tennis Championships due to a viral illness, on the second day of the WTA Dubai Tennis Championships February 26, 2008. REUTERS/Steve Crisp (UNITED ARAB EMIRATES)

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Russia's Maria Sharapova looks down after a press conference, to announce her withdrawal from the Dubai Tennis Championships due to a viral illness, on the second day of the WTA Dubai Tennis Championships February 26, 2008. REUTERS/Steve Crisp (UNITED ARAB EMIRATES)

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