Serena, Federer into third round as Osaka sets up Coco crunch

Fifteen-year-old prodigy Coco Gauff set up an Australian Open blockbuster with defending champion Naomi Osaka on Wednesday, as a pumped-up Serena Williams took another step towards a record-equalling 24th Grand Slam title. On a day when men’s seeds tumbled, Serbia’s Novak Djokovic strode into the third round to […]