Roger Federer of Switzerland hits a return against Lu Yen-Hsun of Taiwan during their men’s singles first round match at the Australian Open 2015 tennis tournament in Melbourne January 19, 2015. REUTERS/Carlos Barria
Roger Federer of Switzerland hits a return against Lu Yen-Hsun of Taiwan during their men’s singles first round match at the Australian Open 2015 tennis tournament in Melbourne January 19, 2015. REUTERS/Carlos Barria