Roger Federer of Switzerland hits a return to Nikolay Davydenko of Russia during their men's singles match at the Australian Open tennis tournament in Melbourne

 
Roger Federer of Switzerland hits a return to Nikolay Davydenko of Russia during their men
Roger Federer of Switzerland hits a return to Nikolay Davydenko of Russia during their men's singles match at the Australian Open tennis tournament in Melbourne January 17, 2013. REUTERS/David Gray