Roger Federer of Switzerland prepares to serve the ball to Dmitry Tursunov of Russia during their men's...
Roger Federer of Switzerland prepares to serve the ball to Dmitry Tursunov of Russia during their men's singles match at the French Open tennis tournament at the Roland Garros stadium in Paris May 30, 2014. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)