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Collins stuns world number one Barty in Adelaide

Collins seized on some poor serving from the world number one to claim a convincing 6-3, 6-4 win in just 65 minutes.

Danielle Collins of the US reacts on a point against Czech Republic's Karolina Pliskova during their women's singles match on day four of the Australian Open tennis tournament in Melbourne on February 11, 2021. Brandon Malone / AFP

ADELAIDE - Unseeded American Danielle Collins sent an out of sorts Ashleigh Barty crashing out of the Adelaide International in the second round on Wednesday.

Collins seized on some poor serving from the world number one to claim a convincing 6-3, 6-4 win in just 65 minutes.

It was Collins' first win over Barty in three encounters and her first win against a current world number one.

Barty started strongly, breaking Collins' first service game and opening up a 3-1 lead, but the Australian's first serve deserted her and Collins got back on terms, then broke Barty twice to claim the first set.

Barty broke again at the start of the second, but once again Collins came back, then broke at 4-4 before holding her own serve to reach the quarter-finals, where she will play Poland's reigning French Open champion Iga Swiatek.

"I feel really comfortable playing here," Collins said.

"I didn't have the crowd on my side today but I still loved playing in front of so many fans. It just makes it such a fun atmosphere."

Swiatek was untroubled against Australian qualifier Maddison Inglis, winning 6-1, 6-3.

Second seed Belinda Bencic cruised into the quarter-finals with a 6-1, 6-3 win over Japan's Misaki Doi.

The Swiss world number 12 dominated throughout to reach her first quarter-final since Doha in February 2020.

"I felt really good on the court," Bencic said.

"It's only my second time in Adelaide but I love this tournament, I feel very comfortable here and it was nice to play in front of the crowd.

"I'm just really happy to be in another quarter-final, and hopefully I can win this time."

Bencic takes on Australian surprise packet Storm Sanders in the last eight.

The left-handed Sanders entered the tournament as the world number 292 but outlasted seventh seed Yulia Putintseva in three sets 6-4, 5-7, 6-1.

American teenager Coco Gauff caused an upset when she came from a set down to beat sixth seed Petra Martic of Croatia 5-7, 6-3, 6-4.

In another upset, Swiss player Jil Teichmann beat China's eighth seeded Wang Qiang 3-6, 6-3, 6-3 to set up a quarter-final against Latvia's Anastasija Sevastova, who downed American lucky loser Christina McHale 6-4, 6-1.

McHale was a late entry when fourth seed Elise Mertens withdrew with a shoulder injury.

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