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Serbia's Viktor Troicki returns a ball to Czech Republic's Tomas Berdych during their quarterfinal Davis Cup tennis match in Prague 6 April, 2012. REUTERS/Petr Josek (CZECH REPUBLIC - Tags: SPORT TENNIS Stock
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Serbia's Viktor Troicki reacts during the semi-final match against his compatriot Novak Djokovic at the Swiss Indoors tennis tournament in Basel November 6, 2010. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT TENNIS Photo
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Dominic Thiem of Austria returns a shot to Viktor Troicki of Serbia in their second round match of men's singles during the Shanghai Rolex Masters ten Stock Photo - Alamy
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23.10.2012 Basel, Switzerland. Grigor Dimitrov of Bulgaria in action during the Swiss Indoors ATP World
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