Czech tennis player Petra Kvitova in the 2012 Australian Tennis Open semifinals against Russia's Maria Sharapova.

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Czech tennis player Petra Kvitova in the 2012 Australian Tennis Open semifinals against Russia's Maria Sharapova.

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Czech tennis player Petra Kvitova in the 2012 Australian Tennis Open semifinals against Russia's Maria Sharapova.

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Spain's Rafael Nadal vs. Swtizerland's Roger Federer in the Australian Open semifinals.

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Spain's Rafael Nadal vs. Swtizerland's Roger Federer in the Australian Open semifinals.

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Swtizerland's Roger Federer vs. Spain's Rafael Nadal in the Australian Open semifinals.

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Spain's Rafael Nadal vs. Swtizerland's Roger Federer in the Australian Open semifinals.

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Photographers filming the Australian Open semifinal match between Rafael Nadal and Roger Federer.

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From left: Swtizerland's Roger Federer vs. Spain's Rafael Nadal in the Australian Open semifinals.

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Swtizerland's Roger Federer vs. Spain's Rafael Nadal in the Australian Open semifinals.

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From left: Swtizerland's Roger Federer vs. Spain's Rafael Nadal in the Australian Open semifinals.

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From left: Swtizerland's Roger Federer vs. Spain's Rafael Nadal in the Australian Open semifinals.

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Swtizerland's Roger Federer leaving the court after the Australian Open semifinal match against Spain's Rafael Nadal.

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Swtizerland's Roger Federer leaving the court after the Australian Open semifinal match against Spain's Rafael Nadal (background).

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Swtizerland's Roger Federer and Spain's Rafael Nadal after the Australian Open semifinal match.

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Spain's Rafael Nadal rejoicing at his win over Swtizerland's Roger Federer in the Australian Open semifinal match .

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Spain's Rafael Nadal rejoicing at his win over Swtizerland's Roger Federer in the Australian Open semifinal match .

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Spain's Rafael Nadal rejoicing at his win over Swtizerland's Roger Federer in the Australian Open semifinal match .

26.01.2012#1022015

Maria Sharapova of Russia celebrates her win in semi-final women's singles match against Petra Kvitova of Czech Republic

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Maria Sharapova of Russia celebrates her win in semi-final women's singles match against Petra Kvitova of Czech Republic

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Maria Sharapova of Russia celebrates her win in semi-final women's singles match against Petra Kvitova of Czech Republic

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Maria Sharapova of Russia celebrates her win in semi-final women's singles match against Petra Kvitova of Czech Republic

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Maria Sharapova of Russia during her semi-final women's singles match against Petra Kvitova of Czech Republic.

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Maria Sharapova of Russia during her semi-final women's singles match against Petra Kvitova of Czech Republic.

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Maria Sharapova of Russia during her semi-final women's singles match against Petra Kvitova of Czech Republic.

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Maria Sharapova of Russia during her semi-final women's singles match against Petra Kvitova of Czech Republic.

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Maria Sharapova of Russia during her semi-final women's singles match against Petra Kvitova of Czech Republic.

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Maria Sharapova of Russia during her semi-final women's singles match against Petra Kvitova of Czech Republic.

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Kim Clijsters of Belgium during her semi-final women's singles match against Viktoria Azarenko of Belarus.

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Maria Sharapova of Russia during her semi-final women's singles match against Petra Kvitova of Czech Republic.

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Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

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Kim Clijsters of Belgium during her semi-final women's singles match against Viktoria Azarenko of Belarus.

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Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

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Kim Clijsters of Belgium during her semi-final women's singles match against Viktoria Azarenko of Belarus.

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Kim Clijsters of Belgium during her semi-final women's singles match against Viktoria Azarenko of Belarus.

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Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

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Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

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Kim Clijsters of Belgium during her semi-final women's singles match against Viktoria Azarenko of Belarus.

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Kim Clijsters of Belgium during her semi-final women's singles match against Viktoria Azarenko of Belarus.

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Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

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Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

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Kim Clijsters of Belgium during her semi-final women's singles match against Viktoria Azarenko of Belarus.

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Kim Clijsters of Belgium during her semi-final women's singles match against Viktoria Azarenko of Belarus.

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Kim Clijsters of Belgium during her semi-final women's singles match against Viktoria Azarenko of Belarus.

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Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

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Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

26.01.2012#1021583

Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

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Viktoria Azarenko of Belarus during her semi-final women's singles match against Kim Clijsters of Belgium.

26.01.2012#1021579