(200130) -- MELBOURNE, Jan. 30, 2020 (Xinhua) -- Roger Federer of Switzerland speaks at the post-match press conference after the men's singles semifinal match against Novak Djokovic of Serbia at the Australian Open tennis tournament in Melbourne, Australia on Jan. 30, 2020., Image: 495602368, License: Rights-managed, Restrictions: , Model Release: no, Credit line: Bai Xue / Xinhua News / Profimedia

Roger Federer of Switzerland celebrates on match point Australian Open Tennis, Day Five, Melbourne Park, Australia - 24 Jan 2020, Image: 494567407, License: Rights-managed, Restrictions: Editorial Use Only, Model Release: no, Credit line: Ella Ling/BPI / Shutterstock Editorial / Profimedia