MASON, OHIO - AUGUST 18: Frances Tiafoe of the United States serves during a match against Learner Tien of the United States on day eight of the Cincinnati Open at Lindner Family Tennis Center on August 18, 2026 in Mason, Ohio. (Photo by Emilee Chinn/Getty Images)

MASON, OHIO - AUGUST 18: Learner Tien of the United States reacts during a match against Frances Tiafoe of the United States on day eight of the Cincinnati Open at Lindner Family Tennis Center on August 18, 2026 in Mason, Ohio. (Photo by Emilee Chinn/Getty Images)

MASON, OHIO - AUGUST 18: Frances Tiafoe of the United States reacts during a match against Learner Tien of the United States on day eight of the Cincinnati Open at Lindner Family Tennis Center on August 18, 2026 in Mason, Ohio. (Photo by Emilee Chinn/Getty Images)

MASON, OHIO - AUGUST 18: Frances Tiafoe of the United States looks on during a match against Learner Tien of the United States on day eight of the Cincinnati Open at Lindner Family Tennis Center on August 18, 2026 in Mason, Ohio. (Photo by Emilee Chinn/Getty Images)

MASON, OHIO - AUGUST 18: Learner Tien of the United States reacts during a match against Frances Tiafoe of the United States on day eight of the Cincinnati Open at Lindner Family Tennis Center on August 18, 2026 in Mason, Ohio. (Photo by Emilee Chinn/Getty Images)

MASON, OHIO - AUGUST 18: Learner Tien of the United States returns a shot during a match against Frances Tiafoe of the United States on day eight of the Cincinnati Open at Lindner Family Tennis Center on August 18, 2026 in Mason, Ohio. (Photo by Emilee Chinn/Getty Images)

MASON, OHIO - AUGUST 18: Learner Tien of the United States serves during a match against Frances Tiafoe of the United States on day eight of the Cincinnati Open at Lindner Family Tennis Center on August 18, 2026 in Mason, Ohio. (Photo by Emilee Chinn/Getty Images)

MASON, OHIO - AUGUST 18: Frances Tiafoe of the United States serves during a match against Learner Tien of the United States on day eight of the Cincinnati Open at Lindner Family Tennis Center on August 18, 2026 in Mason, Ohio. (Photo by Emilee Chinn/Getty Images)