MASON, OHIO - AUGUST 20: Tommy Paul of the United States serves to Flavio Cobolli of Italy during the quarterfinals on day ten of the Cincinnati Open at the Lindner Family Tennis Center on August 19, 2026 in Mason, Ohio. (Photo by Matthew Stockman/Getty Images)

MASON, OHIO - AUGUST 20: Tommy Paul of the United States serves to Flavio Cobolli of Italy during the quarterfinals on day ten of the Cincinnati Open at the Lindner Family Tennis Center on August 19, 2026 in Mason, Ohio. (Photo by Matthew Stockman/Getty Images)

MASON, OHIO - AUGUST 20: Tommy Paul of the United States serves to Flavio Cobolli of Italy during the quarterfinals on day ten of the Cincinnati Open at the Lindner Family Tennis Center on August 19, 2026 in Mason, Ohio. (Photo by Matthew Stockman/Getty Images)

MASON, OHIO - AUGUST 20: Flavio Cobolli of Italy serves to Tommy Paul of the United States during the quarterfinals on day ten of the Cincinnati Open at the Lindner Family Tennis Center on August 19, 2026 in Mason, Ohio. (Photo by Matthew Stockman/Getty Images)

MASON, OHIO - AUGUST 20: Flavio Cobolli of Italy serves to Tommy Paul of the United States during the quarterfinals on day ten of the Cincinnati Open at the Lindner Family Tennis Center on August 19, 2026 in Mason, Ohio. (Photo by Matthew Stockman/Getty Images)

MASON, OHIO - AUGUST 20: Flavio Cobolli of Italy serves to Tommy Paul of the United States during the quarterfinals on day ten of the Cincinnati Open at the Lindner Family Tennis Center on August 19, 2026 in Mason, Ohio. (Photo by Matthew Stockman/Getty Images)

MASON, OHIO - AUGUST 20: Flavio Cobolli of Italy returns a shot to Tommy Paul of the United States during the quarterfinals on day ten of the Cincinnati Open at the Lindner Family Tennis Center on August 19, 2026 in Mason, Ohio. (Photo by Matthew Stockman/Getty Images)

MASON, OHIO - AUGUST 20: Flavio Cobolli of Italy returns a shot to Tommy Paul of the United States during the quarterfinals on day ten of the Cincinnati Open at the Lindner Family Tennis Center on August 19, 2026 in Mason, Ohio. (Photo by Matthew Stockman/Getty Images)