Kate blows a kiss to her parents at Wimbledon as she and William are greeted by David Walliams in the Royal Box

THE Duchess of Cambridge blew a loving kiss to her parents Carole and Michael Middleton as they took to their seats in the Royal Box at Wimbledon today.

Kate Middleton, 40, and Prince William, who were also greeted by comedian and author David Walliams, looked in high spirits as they watched Wimbledon holder Novak Djokovic take on Jannik Sinner on Centre Court.

During the most nail-biting moments of the game, avid tennis fan Kate could barely watch as she was seen covering her eyes and clasping her hands in front of her mouth.

Prince William was also spotted putting on a very animated display and clenching his teeth during a tense serve, before erupting into laughter alongside his wife.

Earlier, the Duke and Duchess were spotted waving to fans as they crossed the bridge from the millennium building into Centre Court after entering at the SW19 grounds via the players' entrance.

Looking typically chic, thrifty Kate put on an elegant display in a recycled £1,515 Alessandra Richnblue polka dot midi dress, which she first wore at a local street party to celebrate the Queen's Platinum jubilee.

The mum-of-three completed her ensemble with a pair of slingback white heeled sandals from the same designer and coordinating Mulberry handbag.

Wearing her long brown locks loose, Kate, who accessorised with a pair of dainty pearl-drop earrings, kept her make-up natural - adding just a touch of blusher and a pink lip.

Meanwhile, Prince William looked dapper in a light grey check suit which he paired with a navy tie and matching smart trousers.

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Kate - who is patron of the Lawn Tennis Association - is a regular fixture at Wimbledon.

Cameron Norrie is also back in action later on against Belgian star David Goffin over on Court No.1.