Argentina's Francisco Cerundolo grabs tennis balla as he plays against Belgium's Alexander Blockx, reflected in a TV crew's mirror, during their men's singles round of 16 match on day nine of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City on September 7, 2026. (Photo by kena betancur / AFP via Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Alexander Blockx of Belgium celebrates match point against Francisco Cerundolo of Argentina during their Men's Singles Fourth Round match on Day Nine of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 07, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)

France's Arthur Gea hits a return to Netherlands' Botic van de Zandschulp during their men's singles round of 16 tennis match on day nine of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York on September 7, 2026. (Photo by Leonardo MUNOZ / AFP via Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Elena Rybakina of Kazakhstan celebrates match point against Naomi Osaka of Japan during their Women's Singles Fourth Round match on Day Nine of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 07, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Patrick Smith/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Elena Rybakina of Kazakhstan returns a shot against Naomi Osaka of Japan during their Women's Singles Fourth Round match on Day Nine of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 07, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Patrick Smith/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Elena Rybakina of Kazakhstan reacts against Naomi Osaka of Japan during their Women's Singles Fourth Round match on Day Nine of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 07, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Patrick Smith/Getty Images)

France's Arthur Gea hits a return to Netherlands' Botic van de Zandschulp during their men's singles round of 16 tennis match on day nine of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York on September 7, 2026. (Photo by Leonardo MUNOZ / AFP via Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Elena Rybakina of Kazakhstan celebrates after defeating Naomi Osaka of Japan during their Women's Singles Fourth Round match on Day Nine of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 07, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Patrick Smith/Getty Images)