Rafael Nadal's MRI shows injured left hip flexor after devastating Australian Open defeat
Follow live updates from the Australian Open as the quarter-finals begin in Melbourne. An unpredictable opening week of the first grand slam of the season has seen the top two seeds of the men’s and women’s draws tumble before the last-eight stage, and there is now an opportunity for those who remain. Among them, third seed Stefanos Tsitsipas has the chance to win a first grand slam title and is in action in the primetime slot on Rod Laver Arena.
