While this year's US Open does not feature the usual crowds of spectators, Serena Williams can at least rely on her loved ones to cheer her on.
Williams took to the court against fellow American player Sloane Stephens on Sunday, winning 2-6 6-2 6-2 to make it through to the last 16.
Following Williams' victory, her husband Reddit co-founder Alexis Ohanian shared an adorable TV clip on his Instagram account showing the moment that his three-year-old daughter Alexis Olympia Ohanian Jr. realised it was her mother on the court.
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With Olympia (as she's better known) on his knee, she could be seen mouthing 'Mama!' and smiling as Ohanian pointed her mother out. Williams is then seen waving excitedly to her daughter during a water break while Ohanian readjusts his daughter's face mask - his own masks adorably reads 'Girl Dad.'
'Baby 👋 Mama,' the tech entrepreneur captioned his post.
Ohanian and little Olympia are often seen at Williams' tournaments with Olympia also making a surprise appearance with her mother at her New York Fashion Week show last year.
Earlier in the tournament, Ohanian had been photographed watching his wife of almost three years wearing another face mask emblazoned with a message, this time encouraging viewers to vote in the presidential election on November 3.
Both Ohanian and Williams are vocal about political and social justice issues, with Ohanian recently giving up his seat on the board of Reddit in order for a Black member to take his place.
Ohanian said he felt compelled to resign 'as a father who needs to be able to answer his Black daughter when she asks: "What did you do?"' amid the ongoing fight for racial justice in the wake of a resurgence of the Black Lives Matter movement.
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Olivia Blair is Entertainment Editor (Luxury) at Hearst UK, working across ELLE, Esquire and Harper's Bazaar. Olivia covers all things entertainment and has interviewed the likes of Margot Robbie, Emma Stone, Michaela Coel and Ryan Gosling over the years.