WASHINGTON, Aug. 12 (Xinhua) -- Canadian teenager Bianca Andreescu, who won a WTA Toronto title on Sunday, withdrew from next week's Cincinnati Masters.
The 19-year-old Canadian heroine, who took down No. 8 seed Serena Williams to lift the trophy, said "Thanks, but no thanks to any extra exertion in the US Open run-up."
As the first Canadian woman to win the Rogers Cup in 50 years, she captured her second title of the year and said that she did not want to take any risks after missing more than two months - and Wimbledon - with shoulder problems before returning to action this week.
"I've never been there, so I'm really disappointed to withdraw from the tournament," said Andreescu, who clinched the title after an ailing Serena retired while trailing 3-1 when the 23-time Grand Slam champion called it a day.
"I really have to listen to my body right now, this last week has not been easy on it," the Canadian starlet picked up three top 10 added, beating world No. 5 Kiki Bertens and world No. 3 Karolina Pliskova before world No. 10 Williams's retirement in the final, and now has a stunning 7-0 record against top 10 players in her career.
Williams, 37, who found herself unable to continue after four games into the opening set, retiring from the match citing an upper back injury, said that "The most frustrating part is that I've had these awful spasms a lot in my career, actually."
Williams won Cincinnati in 2014 and 2015 but went out in the second round to Petra Kvitova last year.