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General view of the Hamburg Rothenbaum tennis stadium during a match between Germany's Nicolas Kiefer and Stanislas Wawrinka of Switzerland at the Hamburg Masters Tennis tournament in Hamburg May 14, 2008. REUTERS/Christian
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Prague, Czech Republic. 20th Aug, 2020. Sumit Nagal of India returns a shot to Stan Wawrinka of Switzerland during the I. CLTK Prague Open of the ATP Challenger Tour match in Prague,
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