Karolina Pliskova defeats Barty to reach US Open quarters

Eighth seed Karolina Pliskova fended off eight break points as she overcame Australia's Ashleigh Barty 6-4 6-4 to reach the U.S. Open quarter-finals on Sunday.

Eighth seed Karolina Pliskova fended off eight break points as she overcame Australia's Ashleigh Barty 6-4 6-4 to reach the U.S. Open quarter-finals on Sunday.

While the Czech converted both of her break point opportunities, 18th seed Barty was left frustrated time and again as she failed to capitalize on her chances.

Pliskova, who was a finalist at Flushing Meadows in 2016, committed 20 unforced errors to Barty's 30 and closed out the match when her opponent smacked the ball into the net.

"It was very tough even though the score looks easy," Pliskova said in an on-court interview. "I'm very happy to be through."

She added to reporters later: "I didn't have that many chances because of her game.

"I didn't really feel like I had the chance and time to be aggressive.

"She had a lot of break points, so it could (have) gone both ways today. It was really like a couple points."

Pliskova will face either Estonia's Kaia Kanepi or Serena Williams for a place in the semi-finals.

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