Serena Williams to Face Roger Federer in Hopman Cup Unknown 01:33 IFTTT, Top Sports News- News18.com Former world number 1 Serena Williams will be up against the Swiss ace Roger Federer in her first event at the 2019 Hopman Cup when USA taken on Switzerland in the mixed doubles. from Top Sports News- News18.com https://ift.tt/2IDuHao via IFTTT Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsI-League: Indian Arrows Thrash Shillong LajongDoc Rivers speaks bluntly about progress of Clippers, Shai Gilgeous-AlexanderHIGHLIGHTS: Clippers erase 20-point deficit, still fall short to Anthony Davis' 46 pointsDanilo Gallinari needs trip to dentist after Anthony Davis chips his toothWADA Poised to Decide Fate of Russian AgencyAlvin Gentry on Davis’ ‘I suck right now’ comment after the win