Coco Gauff overcomes own nerves and Marta Kostyuk challenge to book Australian Open semi-final spot

Women's No 4 seed wins quarter-final 7-6 (8-6), 6-7 (3-7), 6-2 US Open champion into last four of Australia grand slam for first time Coco Gauff stepped onto Rod Laver Arena for her first Australian Open quarter-final desperately struggling to find her game. As nerves and tension dominated her side of the court, unforced errors caked every aspect of her play. Not only did Gauff quickly fall behind 1-5 in the first set against a tenacious Marta Kostyuk, but even when she recovered and established...