Amanda Anisimova upset No. 13 Naomi Osaka 4-6, 6-3, 7-6(5) in the third round of the Australian Open on Thursday. The win sets up a fourth-round clash Saturday between Anisimova and No. 1 Ash Barty, who advanced with a dominant 6-2, 6-3 win over Camila Giorgi.

Anisimova, who was one of Just Women’s Sports’ Americans to watch at the Open, saved two match points in the third set to complete the upset and notch the seventh top-2o win of her career.

For Osaka, it’s the second time an American player has dashed her Australian Open title defense in the third round. In 2020, she lost at the same stage to Coco Gauff.

“For me, I feel like I grew a lot in this match,” the former World No. 1 said after the match. “The last match that I played in New York, I think I had a completely different attitude, so of course I lost, but I’m happy with how it went.

“I fought for every point. I can’t be sad about that. You know, I’m not God. I can’t win every match.”

Anisimova, 20, had high praise for Osaka, calling her “inspiring.”

“What she’s done the last couple of years is amazing, and just how authentic she is,” she said. “I think she’s just great, really fresh for the tour. I think she’s really funny and sweet. It was really cool to finally play her today.”