<prompt> Roger Federer dǝ karǝngǝ tennisbe saa 2019 dǝga badiyono kǝntawu Decemberbe 30 saa 2018, badiyaram Hopman Cup ye dǝn  <response>: kǝla kǝnǝngabe. Saunzә dә kәntagә Novemberbe 16 saa 2019 dәn datәgәna, suro semifinals ATP Finalsbe dәn kәrәngәna. Suro Australian Open dǝn kakkadinzǝ dǝga nzǝlzǝnyi yaye, Federer dǝ karǝngǝ saa dǝye dǝro rankingnzǝ No. 3 Dunyabe dǝga nzǝlzǝ sǝdǝna. 