WASHINGTON, DC - JULY 29: Alex de Minaur of Australia returns a shot during a men's singles match against Stefanos Tsitsipas of Greece during day three of the Mubadala Citi DC Open 2026 at William H.G. FitzGerald Tennis Center on July 29, 2026 in Washington, DC. (Photo by Emilee Chinn/Getty Images)

WASHINGTON, DC - JULY 29: Alex de Minaur of Australia returns a shot during a men's singles match against Stefanos Tsitsipas of Greece during day three of the Mubadala Citi DC Open 2026 at William H.G. FitzGerald Tennis Center on July 29, 2026 in Washington, DC. (Photo by Emilee Chinn/Getty Images)

WASHINGTON, DC - JULY 29: Alex de Minaur of Australia returns a shot during a men's singles match against Stefanos Tsitsipas of Greece during day three of the Mubadala Citi DC Open 2026 at William H.G. FitzGerald Tennis Center on July 29, 2026 in Washington, DC. (Photo by Emilee Chinn/Getty Images)

WASHINGTON, DC - JULY 29: Alex de Minaur of Australia serves during a men's singles match against Stefanos Tsitsipas of Greece during day three of the Mubadala Citi DC Open 2026 at William H.G. FitzGerald Tennis Center on July 29, 2026 in Washington, DC. (Photo by Emilee Chinn/Getty Images)

WASHINGTON, DC - JULY 29: Alex de Minaur of Australia looks on during a men's singles match against Stefanos Tsitsipas of Greece during day three of the Mubadala Citi DC Open 2026 at William H.G. FitzGerald Tennis Center on July 29, 2026 in Washington, DC. (Photo by Emilee Chinn/Getty Images)

WASHINGTON, DC - JULY 29: Stefanos Tsitsipas of Greece reacts during a men's singles match against Alex de Minaur of Australia during day three of the Mubadala Citi DC Open 2026 at William H.G. FitzGerald Tennis Center on July 29, 2026 in Washington, DC. (Photo by Emilee Chinn/Getty Images)

WASHINGTON, DC - JULY 29: Stefanos Tsitsipas of Greece returns a shot during a men's singles match against Alex de Minaur of Australia during day three of the Mubadala Citi DC Open 2026 at William H.G. FitzGerald Tennis Center on July 29, 2026 in Washington, DC. (Photo by Emilee Chinn/Getty Images)

WASHINGTON, DC - JULY 29: Stefanos Tsitsipas of Greece reacts during a men's singles match against Alex de Minaur of Australia during day three of the Mubadala Citi DC Open 2026 at William H.G. FitzGerald Tennis Center on July 29, 2026 in Washington, DC. (Photo by Emilee Chinn/Getty Images)