USA's Serena Williams (R) and Venus Williams play during their women's doubles first-round tennis match against Australia's Maya Joint and Taiwan's Chan Hao-ching on day six of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City on September 4, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

Australia's Maya Joint (L) and Taiwan's Chan Hao-ching high-five each other during their women's doubles first-round tennis match against USA's Serena Williams and Venus Williams on day six of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City on September 4, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

The sun sets behind the Manhattan skyline as seen from the USTA Billie Jean King National Tennis Center in New York City on September 4, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

USA's Serena Williams (L) and Venus Williams talk during their women's doubles first-round tennis match against Australia's Maya Joint and Taiwan's Chan Hao-ching on day six of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City on September 4, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

USA's Serena Williams (L) and Venus Williams talk during their women's doubles first-round tennis match against Australia's Maya Joint and Taiwan's Chan Hao-ching on day six of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City on September 4, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

USA's Serena Williams (R) and Venus Williams bump fists during their women's doubles first-round tennis match against Australia's Maya Joint and Taiwan's Chan Hao-ching on day six of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City on September 4, 2026. (Photo by KENA BETANCUR / AFP via Getty Images)

USA's Serena Williams (L) and Venus Williams talk during a break in their women's doubles first-round tennis match against Australia's Maya Joint and Taiwan's Chan Hao-ching on day six of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City on September 4, 2026. (Photo by CHARLY TRIBALLEAU / AFP via Getty Images)

USA's Serena Williams (R) and Venus Williams wait to receive a serve in their women's doubles first-round tennis match against Australia's Maya Joint and Taiwan's Chan Hao-ching on day six of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City on September 4, 2026. (Photo by CHARLY TRIBALLEAU / AFP via Getty Images)