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."

Hitting her stride in Miami