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Stuttgart, Germany. 14th June, 2017. Switzerland's Roger Federer serves during a 2nd round match of Mercedes Cup tennis tournament with Germany's Tommy Haas in Stuttgart, Germany, on June 14, 2017. Roger Federer
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Stuttgart, Germany. 29th Apr, 2017. German tennis player Laura Siegemund in action against Halep from Romania at the the women's singles match in the Porsche Tennis Grand Prix in the Porsche Arena
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