World number one Simona Halep saved three match points and beat Lauren Davis 4-6 6-4 15-13 in a marathon third round encounter at the Australian Open on Saturday.
Halep came back from the brink at 11-10 in the deciding set before finally prevailing over the determined American in one of the longest matches in history of Australian Open that lasted for three hours and 44 minutes at Rod Laver Arena.
Angelique Kerber beat Maria Sharapova in straight sets 6-1 6-3.
Roger Federer marched into the second week with a 6-2 7-5 6-4 win over Richard Gasquet in just under two hours to stay on track for a 20th grand slam title. The 36-year-old defending champion has now reached the fourth round at Melbourne for the 16th time.
Novak Djokovic, beat Spaniard Albert Ramos-Vinolas 6-2 6-3 6-3.
South Korean Chung Hyeon, outlasted fourth seed Alexander Zverev 5-7 7-6(3) 2-6 6-3 6-0.
Tomas Berdych overpowered Juan Martin del Potro 6-3 6-3 6-2 to reach the fourth round for the 10th time and set up a clash with Italy’s Fabio Fognini, who downed French journeyman Julien Benneteau 3-6 6-2 6-1 4-6 6-3.
Taiwan’s Hsieh Su-wei beat Agnieszka Radwanska 6-2 7-5 in the third round.
Czech Barbora Strycova reached the fourth round at Melbourne Park for the third consecutive year with a 6-2 6-2 win over American Bernarda Pera.
Japan’s Naomi Osaka ousted Ashleigh Barty 6-4 6-2 to reach the round of 16 for the first time in eight grand slam appearances.
Italian Fabio Fognini has equalled his best run at the Australian Open with a 3-6 6-2 6-1 4-6 6-3 third-round victory over France’s Julien Benneteau.
American Tennys Sandgren, ranked 97 in the world, overcame German Maximilian Marterer 5-7 6-3 7-5 7-6(5) to reach the fourth round at a grand slam for the first time.
Fifth seed Austrian Dominic Thiem recorded 42 winners in a sublime attacking display against France’s Adrian Mannarino with a 6-4 6-2 7-5 victory.
World number eight Caroline Garcia beat Aliaksandra Sasnovich 6-3 5-7 6-2 in the third round and advances to a last 16 encounter against American Madison Keys.
Sixth seed Karolina Pliskova recorded 31 winners, including 11 aces, to beat fellow Czech Lucie Safarova 7-6(6) 7-5 in the third round.
American 17th seed Madison Keys beat unseeded Romanian Ana Bogdan 6-3 6-4 at Margaret Court Arena. The U.S. Open finalist will meet eighth seed Caroline Garcia for a place in the quarter-finals.