Julia Goerges of Germany receives medical treatment before retiring from her women's singles match against Bethanie Mattek-Sands of the U.S. at the Sydney International tennis tournament in Sydney, Australia, Sunday, Jan. 5, 2014.  (AP Photo/Daniel Munoz)

Australia Tennis Sydney International

Julia Goerges of Germany receives medical treatment before retiring from her women's singles match against Bethanie Mattek-Sands of the U.S. at the Sydney International tennis tournament in Sydney, Australia, Sunday, Jan. 5, 2014. (AP Photo/Daniel Munoz)

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