Serena Williams and Novak Djokovic’s relentless drive towards more Australian Open glory cranked up another gear Saturday with third round drubbings, as Naomi Osaka and Elina Svitolina survived big scares to stay in the hunt. On day six at Melbourne Park, 23-time Grand Slam Williams crushed Ukrainian teenager Dayana Yastremska 6-2, 6-1 before consoling her […]