Serena Williams withdraws from Tokyo Olympics – CBS News<!–http://vidtech.cbsinteractive.com/avia-js/1.6.0/player/avia.min.js http://vidtech.cbsinteractive.com/avia-js/1.6.0/plugins/ui/avia.ui.min.js –> Watch CBSN Live Four-time Olympic gold medalist Serena Williams said she will not go to the Tokyo Olympics this year, but did not want to say why during her pre-Wimbledon video conference with reporters Sunday. CBSN’s Lana Zak has […]