NEW YORK, NEW YORK - SEPTEMBER 02: Belinda Bencic of Switzerland returns a shot during her 4th round day 8 2019 US Open Women's Singles match against Naomi Osaka of Japan at the USTA Billie Jean King National Tennis Center on September 02, 2019 in Queens borough of New York City. (Photo by Chaz Niell/Getty Images)
NEW YORK, NEW YORK - SEPTEMBER 02: Naomi Osaka of Japan returns a shot during her Women's Singles fourth round match against Belinda Bencic of Switzerland on day eight of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 02, 2019 in Queens borough of New York City. (Photo by Al Bello/Getty Images)
Naomi Osaka of Japan takes a break against Belinda Bencic of Switzerland during their Round Four Women's Singles match at the 2019 US Open at the USTA Billie Jean King National Tennis Center in New York on September 2, 2019. (Photo by TIMOTHY A. CLARY / AFP) (Photo credit should read TIMOTHY A. CLARY/AFP via Getty Images)
NEW YORK, NEW YORK - SEPTEMBER 02: Belinda Bencic (R) of Switzerland shakes hands with Naomi Osaka (L) of Japan after their Women's Singles fourth round match on day eight of the 2019 US Open at the USTA Billie Jean King National Tennis Center on September 02, 2019 in Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)
