Austria's Anastasia Potapova reaches to hit a return against Russia's Mirra Andreeva during their women'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 City on September 7, 2026. (Photo by TIMOTHY A. CLARY / AFP via Getty Images)

Austria's Anastasia Potapova hits a return against Russia's Mirra Andreeva during their women'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 City on September 7, 2026. (Photo by TIMOTHY A. CLARY / AFP via Getty Images)

Austria's Anastasia Potapova serves to Russia's Mirra Andreeva during their women'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 City on September 7, 2026. (Photo by TIMOTHY A. CLARY / AFP via Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Mirra Andreeva looks on during a break in play against Anastasia Potapova of Austria 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 Sarah Stier/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Anastasia Potapova of Austria reacts against Mirra Andreeva 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 Sarah Stier/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Anastasia Potapova of Austria reacts against Mirra Andreeva 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 Sarah Stier/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Anastasia Potapova of Austria returns a shot against Mirra Andreeva 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 Sarah Stier/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Anastasia Potapova of Austria returns a shot against Mirra Andreeva 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 Sarah Stier/Getty Images)