Playing the fourth round of the Australian Open for the first time, Coco Vandeweghe eliminated reigning champion and world number one Angelique Kerber in straight sets.
Without even facing a break point in the first set, the 35th-ranked Vandeweghe raced to 6-2, hitting 16 winners to Kerber's four and winning 8 out of 10 points at the net, while Kerber never approached the net. The German top seed attacked early in the second set to open it with a break, but the American won four straight games from 3-2 down for the biggest victory of her career.