That tees up Swiatek against world number four Coco Gauff.

Manchester City added to their attacking arsenal on Friday with the signing of Antoine Semenyo from Bournemouth for a reported £65 million ($87 million).

Nick Kyrgios ruled out playing singles at the Australian Open on Friday, focusing only on doubles with five-set matches "a different beast".

US snowboarding star Chloe Kim said she had suffered a dislocated shoulder in training, just weeks before she bids to win a third consecutive gold medal at next month's Winter Olympics.