21-year-old Osaka will fall from the world number one spot next week as Belinda Bencic triumphs with 7-5, 6-4. Belinda Bencic reached the US Open quarter-finals defeating the defending champion Naomi Osaka. Talking about her win against the Japanese star she said, “The challenge cannot be bigger against Naomi. I had to be at the top of my game and I’m really pleased how well I handled my nerves at the end”. At the quarter-finals, Belinda will be seen facing Donna Vekic. Naomi Osaka has been criticized by Greg Rusedski after her defeat to Belinda Bencic. The former British No 1 thinks this might be the start of her decline. With Osaka’s exit, there will be four different women’s Grand Slam winners in a season for the third consecutive year, a first in the Open era.