The Australian Open

81b9656c63d0d403490f6a7067007857.jpg

Roger Federer of Switzerland, right, and Rafael Nadal of Spain walk during the change of end in their semifinal at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 24, 2014. (AP Photo/Andrew Brownbill)

37084c7163edd403490f6a7067009445.jpg

Roger Federer of Switzerland speaks during a press conference after his semifinal loss to Rafael Nadal of Spain at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 24, 2014. (AP Photo/Aijaz Rahi)

01a3422563e8d403490f6a7067006ce9.jpg

Roger Federer of Switzerland speaks during a press conference after his semifinal loss to Rafael Nadal of Spain at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 24, 2014. (AP Photo/Aijaz Rahi)

6247a4b063cbd403490f6a7067005352.jpg

Rafael Nadal of Spain, right, is congratulated by Roger Federer of Switzerland at the net after Nadal won their semifinal at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 24, 2014.(AP Photo/Rick Rycroft)

99a9b72363ccd403490f6a7067006de4.jpg

Rafael Nadal of Spain celebrates after defeating Roger Federer of Switzerland during their semifinal at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 24, 2014.(AP Photo/Aijaz Rahi)

252602b363ded403490f6a70670073a0.jpg

Rafael Nadal of Spain celebrates after defeating Roger Federer of Switzerland during their semifinal at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 24, 2014.(AP Photo/Aaron Favila)