Roger Federer of Switzerland serves during the men's singles match against Jack Sock of the United States on day 6 of the Hopman Cup tennis tournament in Perth, Australia, Jan. 4, 2018. (Xinhua/Zhou Dan)
Hopman Cup: Roger Federer vs. Jack Sock
Source: Xinhua| 2018-01-05 09:29:22|Editor: Yang Yi
KEY WORDS:Hopman Cup
YOU MAY LIKE
MORE PHOTOS
