see more

NEW YORK, NEW YORK - SEPTEMBER 11: Robin Montgomery of the United States returns the ball against Kristina Dmitruk of Belarus during their Girls' Singles final match on Day Thirteen of the 2021 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2021 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Sarah Stier/Getty Images)

NEW YORK, NEW YORK - SEPTEMBER 11: Robin Montgomery of the United States returns the ball against Kristina Dmitruk of Belarus during their Girls' Singles final match on Day Thirteen of the 2021 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2021 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Sarah Stier/Getty Images)