LONDON, ENGLAND - JULY 11: HRH Catherine, Duchess of Cambridge and Prince Edward, Duke of Kent go onto court after the men's Singles Final match between Novak Djokovic of Serbia and Matteo Berrettini of Italy on Day Thirteen of The Championships - Wimbledon 2021 at All England Lawn Tennis and Croquet Club on July 11, 2021 in London, England. (Photo by Julian Finney/Getty Images)
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LONDON, ENGLAND - JULY 11: Novak Djokovic of Serbia is presented with the trophy by Prince Edward, Duke of Kent after winning his men's Singles Final match against Matteo Berrettini of Italy on Day Thirteen of The Championships - Wimbledon 2021 at All England Lawn Tennis and Croquet Club on July 11, 2021 in London, England. (Photo by Julian Finney/Getty Images)
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Getty Images Sport Julian Finney

LONDON, ENGLAND - JULY 11: HRH Catherine, Duchess of Cambridge attends Wimbledon Championships Tennis Tournament at All England Lawn Tennis and Croquet Club on July 11, 2021 in London, England. (Photo by Karwai Tang/WireImage)
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WireImage Karwai Tang

LONDON, ENGLAND - JULY 11: HRH Catherine, Duchess of Cambridge attends Wimbledon Championships Tennis Tournament at All England Lawn Tennis and Croquet Club on July 11, 2021 in London, England. (Photo by Karwai Tang/WireImage)
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WireImage Karwai Tang

LONDON, ENGLAND - JULY 11: HRH Catherine, Duchess of Cambridge looks on after the men's Singles Final match between Novak Djokovic of Serbia and Matteo Berrettini of Italy on Day Thirteen of The Championships - Wimbledon 2021 at All England Lawn Tennis and Croquet Club on July 11, 2021 in London, England. (Photo by Julian Finney/Getty Images)
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Getty Images Sport Julian Finney