MASON, OHIO - AUGUST 18: Marta Kostyuk of Czechia serves to Sloane Stephens of the United States during day eight of the Cincinnati Open at the Lindner Family Tennis Center on August 18, 2026 in Mason, Ohio. (Photo by Matthew Stockman/Getty Images)

Estudiantes' Uruguayan head coach Alexander Medina gestures on the touchline during the second leg of the Copa Libertadores round of 16 football match between Chile's Universidad Catolica and Argentina's Estudiantes de La Plata at the Claro Arena stadium in Santiago, on August 18, 2026. (Photo by Rodrigo ARANGUA / AFP via Getty Images)

Universidad Catolica's Argentine head coach Daniel Garnero gestures on the touchline during the second leg of the Copa Libertadores round of 16 football match between Chile's Universidad Catolica and Argentina's Estudiantes de La Plata at the Claro Arena stadium in Santiago, on August 18, 2026. (Photo by Rodrigo ARANGUA / AFP via Getty Images)

Estudiantes' defender #24 Tomas Palacios and Universidad Catolica's Argentine midfielder #07 Justo Giani fight for the ball during the second leg of the Copa Libertadores round of 16 football match between Chile's Universidad Catolica and Argentina's Estudiantes de La Plata at the Claro Arena stadium in Santiago, on August 18, 2026. (Photo by Rodrigo ARANGUA / AFP via Getty Images)

MASON, OHIO - AUGUST 18: Frances Tiafoe of the United States returns a shot 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 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: 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: 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)