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Novak Djokovic
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Novak 
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Andy 
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Roger 
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Serena 
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Maria 
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Victoria 
The former top-20 WTA star is dealing with Hodgkin's lymphoma.
Argentine has been troubled by a bronchial infection since Monte Carlo, which forced him to pull out of Estoril and Madrid.
"The pain has only worsened since the start of the clay season," said Radwanska.
