Iga Swiatek fell to a shock defeat in the fourth round at the Canadian Open, losing 7-6 6-3 to world No. 19 Clara Tauson.The Wimbledon champion and second seed in Montreal looked out of sorts as her opponent avenged the loss at SW19 last month.

It was the latest unexpected exit for a top player, after top seed Coco Gauff, Jessica Pegula and fourth seed Mirra Andreeva all lost.

“Obviously it’s really great, and it shows all the hard work I’ve been doing has been the right thing,” said Tauson in her on-court interview.

“I’m getting more confidence in this kind of level and feeling like I belong here a bit more. I think that really helped me today in the important points.

“It’s tough conditions here with the wind but I tried my best to keep my head cool and keep working.

“Even though I got broken in the second set, I was feeling confident and I’m really happy about the win.”

Tauson will play American Madison Keys in the quarter-finals after the Australian Open champion beat Karolina Muchova.

“Clara’s a fantastic ball-striker,” Keys said of her next opponent. “She’s got a big serve. She’s got a lot of power on both sides.

“She covers the court quite well on top of everything, so I feel like she’s one of those matches where you kind of have to temper a little bit and not go for things too quickly.”

Osaka storms into last eight

Naomi Osaka caught the eye in her fourth round match, beating Anastasija Sevastova 6-1 6-0 in just 49 minutes.

The 27-year-old is targeting a first title since she returned from maternity leave early last year.

She has reached the quarter-finals of a WTA 1000 event for the first time in 19 months, having appointed Swiatek’s former coach Tomasz Wiktorowski.

“I had a solid plan coming in here, and it happened to work out very well,” Osaka said.

The Japanese star will face an in-form Elina Svitolina in the last eight, after the Ukrainian beat Wimbledon finalist Amanda Anisimova 6-4 6-1.

Svitolina, who won the Canadian Open in 2017, looked at her imperious best at times as she comfortably got the better of Anisimova.

“It was a great performance from me tonight,” Svitolina said. “I’m happy I could play well and move well because Amanda is such a big striker. I had to be physically strong. Very happy I could do it well today.”

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