Switzerland's Roger Federer answers questions during a press conference at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 14, 2018. (AP Photo/Dita Alangkara)
Switzerland's Roger Federer answers questions during a press conference at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 14, 2018. (AP Photo/Dita Alangkara) (Bild 1 von 1) , Foto von KEYSTONE/AP/DITA ALANGKARA