Osaka advances to Miami Open quarters with straight-set victory over Riske

Making the quarter-finals at a tournament used to be no big deal for Naomi Osaka. It was only a shock if it didn't happen.

Things are a bit different now.

The former world No. 1 has made it through to the quarter-finals at the Miami Open — just the second time she has managed to advance that deep in any tournament over the last year. Osaka beat Alison Riske of the U.S. 6-3, 6-4 on Monday in Miami Gardens, Fla., moving into a round-of-eight matchup with Danielle Collins.

Osaka's only other quarter-final appearance in the last year was at an Australian Open warmup tournament in Melbourne in January. Before that, her most recent quarter-finals trip was at Miami a year ago.

"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."

Wins these days just mean more, after ongoing struggles and time away from the game to deal with her mental health. Her ranking in the world has dipped to No. 77 — it could get somewhere around No. 30 if she wins the Miami title — and she hasn't won a tournament since that Australian Open victory last year.

But her stay in Miami so far has been nothing but happiness, with three easy wins — all in straight sets — and the added benefit of a walkover victory in there as well.

"This is really one of the funnest times of my life," Osaka said. "I'm really grateful."

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.

Collins is 0-2 in previous matches against Osaka, both straight-set losses on hard courts, one in 2018, the other in 2019.

"When Naomi is at the top of her game, she's very, very hard to beat," Collins said.

Daria Saville also got into the quarter-finals, surviving a three-hour match to beat Lucia Bronzetti 5-7, 6-4, 7-5. Saville has climbed a staggering 500 spots in the rankings in about a month and a half; she was 627th in the world in mid-February and could make the top 100 if she wins her next match against No. 22 Belinda Bencic — a 6-2, 6-3 winner Monday over Aliaksandra Sasnovich.

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

"I was in a good mood today and [in a] good zone," Swiatek said. "I was really focused. Sometimes I have these kind of moments where I don't even know what the score is. That's nice, because you're just focusing on tennis and tactics and technique."

Swiatek will next play No. 28 Petra Kvitova, a 7-6 (5), 6-4 winner over No. 21 Veronika Kudermetova.

No. 16 Jessica Pegula also advanced; unseeded Anhelina Kalinina retired after Pegula won the first set 6-0. Pegula will play No. 5 Paula Badosa, a 6-2, 6-3 winner over Linda Fruhvirtova in the quarterfinals.

Medvedev nears opportunity to reclaim top ranking

In the men's third round, Daniil Medvedev is now two wins away from reclaiming the No. 1 world ranking.

Medvedev fired 14 aces, won 79 per cent of his first-serve points and broke Martinez three times to secure victory in 84 minutes.

"I just felt like I had to be more consistent, and the more consistent one today would win," Medvedev said.

"I managed to just make a few less errors at important moments, serve even better, and it was a small margin, but I managed to win and I'm really happy."

Next up for Medvedev: American Jenson Brooksby, who rallied from 0-4 down in the third set to upset No. 15 Roberto Bautista Agut 6-3, 5-7, 6-4.

"I competed until the end," Brooksby said.

No. 11 Taylor Fritz — seeking the so-called "Sunshine Double," meaning tournament wins at both Indian Wells and Miami — topped good friend Tommy Paul 7-6 (2), 6-4 in an all-American third-round matchup.

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 fighting 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.