Coco Gauff moved into the fourth round at Melbourne Park with a straightforward victory over Leylah Fernandez.

In a tougher-than-expected match, Aryna Sabalenka beat Clara Tauson 7-6 (5), 6-4 in a poor serving display by both players to open the sixth day of play on Rod Laver Arena.

Elsewhere, in the men's draw, American 12th seed Tommy Paul will take on Spain's Alejandro Davidovich Fokina, while German second seed Alexander Zverev faces French 14th seed Ugo Humbert. The winners of these matches will advance to the semi-finals.

Two-time defending champion Aryna Sabalenka has moved into the Australian Open quarterfinals with a 6-1, 6-2 win over 17-year-old Mirra Andreeva

With a 6-1, 6-2 victory over 14th-seeded Mirra Andreeva to open play Sunday at Rod Laver Arena, Aryna Sabalenka advanced to the quarterfinals of the Australian Open, where she's three wins from achieving something no woman has done since the 1990s.

Defending champion Aryna Sabalenka overcame a wobbly display to reach the Australian Open fourth round while Novak Djokovic and Carlos Alcaraz were at their dazzling best on a warm but windy Friday at Melbourne Park.