NEW YORK, NEW YORK - SEPTEMBER 02: Yunchaokete Bu of China throws balls to fans after defeating Rafael Jodar of Spain during their Men's Singles Second Round match on Day Four of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 02, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Caleb Bowlin/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 02: Yunchaokete Bu of China throws balls to fans after defeating Rafael Jodar of Spain during their Men's Singles Second Round match on Day Four of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 02, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Caleb Bowlin/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 02: Yunchaokete Bu of China shakes hands after defeating Rafael Jodar of Spain during their Men's Singles Second Round match on Day Four of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 02, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Caleb Bowlin/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 02: Yunchaokete Bu of China reacts against Rafael Jodar of Spain during their Men's Singles Second Round match on Day Four of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 02, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Caleb Bowlin/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 02: Hubert Hurkacz of Poland returns a shot against Ben Shelton of the United States during their Men's Singles Second Round match on Day Four of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 02, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Julian Finney/Getty Images)

USA's Ben Shelton reacts during his men's singles second round tennis match against Poland's Hubert Hurkacz on day four of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York on September 2, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 02: Yunchaokete Bu of China returns a shot against Rafael Jodar of Spain during their Men's Singles Second Round match on Day Four of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 02, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Caleb Bowlin/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 02: Ben Shelton of the United States reacts against Hubert Hurkacz of Poland during their Men's Singles Second Round match on Day Four of the 2026 US Open at USTA Billie Jean King National Tennis Center on September 02, 2026 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Julian Finney/Getty Images)