A close up shows the head band of Roger Federer of Switzerland from behind during his men's singles match...
A close up shows the head band of Roger Federer of Switzerland from behind during his men's singles match against Dmitry Tursunov of Russia at the French Open tennis tournament at the Roland Garros stadium in Paris May 30, 2014. REUTERS/Stephane Mahe (FRANCE - Tags: SPORT TENNIS)