NEW YORK, NEW YORK - SEPTEMBER 07: Qinwen Zheng of China shakes hands after a win against Iga Swiatek of Poland in 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 Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Qinwen Zheng of China celebrates after defeating Iga Swiatek of Poland in 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 Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Qinwen Zheng of China celebrates after defeating Iga Swiatek of Poland in 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 Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Qinwen Zheng of China celebrates after defeating Iga Swiatek of Poland in 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 Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Qinwen Zheng of China celebrates after defeating Iga Swiatek of Poland in 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 Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Qinwen Zheng of China celebrates after defeating Iga Swiatek of Poland in 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 Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Mirra Andreeva returns a shot 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 Patrick Smith/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 07: Anastasia Potapova of Austria serves 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 Patrick Smith/Getty Images)