Published on September 3 2019 6:07 am	
	
	Last Updated on September 3 2019 6:07 am	
	
Belinda Bencic pulled off a stunning upset at the U.S. Open Sunday by knocking top-seed Naomi Osaka out of the tournament in straight sets and advancing to the quarterfinals. Also advancing was Rafael Nadal, who defeated 2014 champion Marin Cilic.