Switzerland's Roger Federer speaks during a press conference after defeat in his men's singles semi-final match against Serbia's Novak Djokovic on day eleven of the 2016 Australian Open tennis tournament in Melbourne on January 28, 2016. AFP PHOTO / PETER PARKS -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE / AFP / PETER PARKS (Photo credit should read PETER PARKS/AFP/Getty Images)
