Canada's Dabrowski, Mexico's Olmos advance to women's doubles quarter-finals at U.S. Open

Ottawa's Gabriela Dabrowski and Mexican partner Giuliana Olmos have advanced to the women's doubles quarter-finals of the U.S. Open.

Dabrowski and Olmos beat Japan's Ena Shibahara and Asia Muhammad of the United States 6-3, 3-6, 7-6 (8) on Sunday at the Grand Slam event.

Dabrowski and Olmos, the tournament's fifth seed, won a single tiebreak to Shibahara and Muhammad's none.

Although Shibahara and Muhammad had three aces to Dabrowski and Olmos's two, they had six double faults to the victors' four.

Dabrowski and Leylah Annie Fernandez of Laval Que., who is still in the mixed doubles draw with American partner Jack Sock, are the last Canadians competing in the U.S. Open.

No. 12 seed Coco Gauff wagged her finger and showed the prowess that made her a U.S. Open championship contender in a 7-5, 7-5 win over Zhang Shuai.

The 18-year-old Gauff is in the U.S. Open quarter-finals for the first time in her career and will play France's Caroline Garcia. Gauff is the youngest American woman to reach the U.S. Open quarter-finals since 2009.

Coco ➡️ <a href="https://twitter.com/hashtag/USOpen?src=hash&amp;ref_src=twsrc%5Etfw">#USOpen</a> Quarterfinals <a href="https://t.co/dt79TzYLSI">pic.twitter.com/dt79TzYLSI</a>

Gauff had the New York crowd firmly on her side and fans erupted in the third set when she wagged her finger like Dikembe Mutombo's signature move after she went up 6-5 in the second set. Zhang had smacked a ball into the net and covered her ears because of the noise.

Garcia continued her red-hot form with a crushing 6-4 6-1 win over American 29th seed Alison Riske-Amritraj to sweep into her maiden U.S. Open quarter-final.

"I'm trying to be aggressive, go for my shots, even when I'm feeling tight. I'm having fun, yeah,"