Former First Lady Michelle Obama attends the women's singles semi-final tennis match between Belarus's Aryna Sabalenka and USA's Jessica Pegula on day twelve of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City on September 10, 2026. (Photo by CHARLY TRIBALLEAU / AFP via Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 10: Harri Heliovaara of Finland and Henry Patten of the United Kingdom react against Christian Harrison of the United States and Neal Skupski of the United Kingdom in their Men's Doubles Semifinal match on Day Twelve of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 10, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 10: Christian Harrison of the United States and Neal Skupski of the United Kingdom interact against Harri Heliovaara of Finland and Henry Patten of the United Kingdom in their Men's Doubles Semifinal match on Day Twelve of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 10, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 10: Aryna Sabalenka returns a shot against Jessica Pegula of the United States during their Women's Singles Semifinal match on Day Twelve of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 10, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 10: Jessica Pegula of the United States walks out before her match against Aryna Sabalenka during their Women's Singles Semifinal match on Day Twelve of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 10, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 10: Aryna Sabalenka walks out before her match against Jessica Pegula of the United States during their Women's Singles Semifinal match on Day Twelve of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 10, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 10: Aryna Sabalenka walks out before her match against Jessica Pegula of the United States during their Women's Singles Semifinal match on Day Twelve of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 10, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Julian Finney/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 10: Jessica Pegula of the United States and Aryna Sabalenka pose for a photo at the net before their Women's Singles Semifinal match on Day Twelve of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 10, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Sarah Stier/Getty Images)