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Roger Federer of Switzerland trains during the Shanghai Masters tennis tournament in Shanghai October 6, 2012. Shanghai Masters organisers have increased security for the tournament starting on Saturday after an online threat
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Bai Yan of China reacts during his match against Andy Murray of Britain at the Shanghai Masters tennis tournament October 13, 2010. REUTERS/Aly Song (CHINA - Tags: SPORT TENNIS Stock Photo - Alamy
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