Medvedev reaches last 16, Osaka into quarters

Top seed Daniil Medvedev moved a step closer to reclaiming the world number one ranking as he beat Spaniard Pedro Martinez 6-3 6-4 on Monday to reach the last 16 at the Miami Open while Naomi Osaka cruised into the quarter-fi nals of the women’s draw. Osaka beat Alison Riske of the U.S. 6-3, 6-4.

“It’s really funny for me, because last year here I made it to the quarters, too,” Osaka said. “It was after I won Australia and I wasn’t that grateful. I kind of expected to win.”

Collins, the No. 9 seed from the U.S., needed just over an hour Monday to win her fourth-round match against No. 8 Ons Jabeur, 6-2, 6-4.

Daria Saville also got into the quarterfi nals, surviving a three-hour match to beat Lucia Bronzetti 5-7, 6-4, 7-5.

No. 2 Iga Swiatek, who is already assured of moving to No. 1 next week, also rolled into the quarterfi nals with a 6-3, 6-1 win over No. 14 Coco Gauff.

No. 3 seed Stefanos Tsitsipas beat No. 25 Alex de Minaur, 6-4, 6-3. Defending champion Hubert Hurkacz also advanced, the No. 8 seed fi ghting past No. 29 Aslan Karatsev 7-5, 4-6, 6-3. No. 14 Carlos Alcaraz got by No. 21 Marin Cilic 6-4, 6-4.