Americans Gauff, Pegula into 4th round at Australian Open

MELBOURNE, Australia (AP) — Americans Jessica Pegula and Coco Gauff have had convincing third-round wins at the Australian Open. The third-seeded Pegula was a quarterfinalist the past two years at Melbourne Park. She needed 65 minutes for a 6-0, 6-2 victory over Marta Kostyuk. Seventh-seeded Gauff beat Bernarda Pera 6-3, 6-2 to reach the last 16. Top-seeded Iga Swiatek beat Cristina Bucsa, a qualifier from Spain, 6-0, 6-1 in 55 minutes. Last year’s finalist Danielle Collins of the U.S. was beaten 6-2, 5-7, 6-2 by Wimbledon champion Elena Rybakina.