Iga Swiatek downs Zheng Qinwen to reach San Diego quarterfinals

San Diego Open and close in on an eighth title this season. Swiatek, who nearly clinched an eighth trophy last week losing in the final of the Ostrava Open in the Czech Republic, brought her form back with her to the United States where she claimed the U.S. Open crown last month.

It will be Swiatek's 12th quarterfinal of the year where she will take on the winner between American Coco Gauff and Canadian Bianca Andreescu, who meet later on Thursday. "Qinwen, she has a different game style because she's playing topspin on her forehand and the ball is flying pretty high," said Swiatek, whose seven titles include two grand slams the French and U.S. Opens.

"So today I had to adjust to that. "But overall, the first matches of any tournament is about adjusting to the conditions we have here." Coming off a first round bye, Swiatek had the only break to take the opening set but then appeared to run out of energy and focus in the second allowing the 28th ranked Zheng back into the match. With seven break chances in the second Swiatek had plenty of opportunities to bring the contest to a quick conclusion but it was big-hitting Zheng getting the timely break at 5-4 to take the second and level the match.