World number one and reigning champion Angelique Kerber wasted no time in racing into the fourth round of the Australian Open with a 6-0 6-4 victory over Kristyna Pliskova on Rod Laver Arena on Friday.

The 29-year-old German served poorly in the first set and had a minor wobble in the second but recovered her composure to progress comfortably to a meeting with American Coco Vandeweghe.