This US Open could be Bianca Andreescu’s chance to add a crowning moment to her sudden rise in women’s tennis. The Flushing Meadows crowd is not impressed, though.

The 19-year-old Canadian won a hard-fought 6-1, 4-6, 6-2 match against Taylor Townsend on Monday night to advance to her first Grand Slam quarterfinal. But she earned the ire of the Queens crowd with a third-set racket toss that came close to the chair umpire and an extended bathroom break before the third set.

“It wasn’t easy, but I heard some Canadian fans here and there, which is nice in tougher moments,” Andreescu said. “I tried not to pay attention to that, but it’s hard when it’s everyone. I’m glad with how I managed to keep my cool.”

Andreescu, seeded No. 15, said some fans were screaming “double fault” at her before second serves as the evening turned contentious. She was unfazed for the most part, though, and will get Elise Mertens on Wednesday.

Andreescu rose from relative obscurity by claiming the Indian Wells title in March. Following shoulder surgery that kept her out most of the summer, she won the Canadian Open when Serena Williams had to withdraw from the final. Those two could now be on a collision course to meet in the US Open final as well.

Andreescu, who is 28-4 on hardcourts this year, was described by reporters as the new “alpha” of women’s tennis and an “absolute boss.”

“It’s not like anywhere else — playing here in front of you guys obviously the crowd wasn’t for me today but I heard some Canadians, you guys are unreal,” she said in her post-match interview.