Australia

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Lleyton Hewitt of Australia plays a shot in men's final match against Roger Federer of Switzerland during the Brisbane International tennis tournament in Brisbane, Australia, Sunday, Jan. 5, 2014. (AP Photo/Tertius Pickard)

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Roger Federer of Switzerland reacts after winning a point in men's final match against Lleyton Hewitt of Australia during the Brisbane International tennis tournament in Brisbane, Australia, Sunday, Jan. 5, 2014. (AP Photo/Tertius Pickard)

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Roger Federer of Switzerland plays a shot in men's final match against Lleyton Hewitt of Australia during the Brisbane International tennis tournament in Brisbane, Australia, Sunday, Jan. 5, 2014. (AP Photo/Tertius Pickard)

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Dominika Cibulkova of Slovakia reacts after winning a point against Angelique Kerber of Germany during their women's singles match at the Sydney International tennis tournament in Sydney, Australia, Monday, Jan. 6, 2014. (AP Photo/Daniel Munoz)

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Lucie Safarova of the Czech Republic reacts after winning a point against Francesca Schiavone of Italy during their women's singles match at the Sydney International tennis tournament in Sydney, Australia, Monday, Jan. 6, 2014. (AP Photo/Daniel Munoz)

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Bethanie Mattek-Sands of the U.S. acknowledges the crowd after defeating Eugenie Bouchard of Canada during their women's singles match at the Sydney International tennis tournament in Sydney, Australia, Monday, Jan. 6, 2014. (AP Photo/Daniel Munoz)

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Angelique Kerber of Germany reacts after winning a point against Dominika Cibulkova of Slovakia during their women's singles match at the Sydney International tennis tournament in Sydney, Australia, Monday, Jan. 6, 2014. (AP Photo/Daniel Munoz)

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Kei Nishikori of Japan reacts after winning a point in his quarter final match against Marin Cilic of Croatia during the Brisbane International tennis tournament in Brisbane, Australia, Friday, Jan. 3, 2014. (AP Photo/Tertius Pickard)

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Kei Nishikori of Japan plays a shot in his quarter final match against Marin Cilic of Croatia during the Brisbane International tennis tournament in Brisbane, Australia, Friday, Jan. 3, 2014. (AP Photo/Tertius Pickard)

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Lleyton Hewitt of Australia reacts after winning the first set in his quarterfinal match against Marius Copil of Romania during the Brisbane International tennis tournament in Brisbane, Australia, Friday, Jan. 3, 2014. (AP Photo/Tertius Pickard)

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Lleyton Hewitt of Australia celebrates after beating Marius Copil of Romania 6-4, 6-2 in their quarter final match during the Brisbane International tennis tournament in Brisbane, Australia, Friday, Jan. 3, 2014. (AP Photo/Tertius Pickard)

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Adam Scott, of Australia, reacts to a missed birdie putt on the third green during the first round of the Tournament of Champions golf tournament, Friday, Jan. 3, 2014, in Kapalua, Hawaii. (AP Photo/Marco Garcia)

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In this Tuesday, Dec. 31, 2013 image provided by Australasian Antarctic Expedition/Footloose Fotography, passengers from the Russian ship MV Akademik Shokalskiy trapped in the ice 1,500 nautical miles south of Hobart, Australia, walk around the ice. Passengers on board a research ship that has been trapped in Antarctic ice for a week are expected to be rescued by helicopter, after three icebreakers failed to reach the paralyzed vessel, officials said Tuesday. (AP Photo/Australasian Antarctic Expedition/Footloose Fotography, Andrew Peacock) EDITORIAL USE ONLY