Most tennis fans can only dream of taking the court alongside a grand slam champion - but the Duchess of Cambridge got to do exactly that earlier today.
Kate, who is a huge fan of the sport, met with British US Open champion Emma Raducanu at the LTA's National Tennis Centre to congratulate the teenager on her epic win.
And not only did they chat, but Kate also got the chance to go up against Emma on the tennis court, where it was remarked it was "getting competitive".
They also teamed up for a doubles match with Kate cheering as she won a point.
And according to royal expert and author Duncan Larcombe, the Duchess looked 'starstruck' to be meeting one of the biggest names in her favourite sport.
He told OK! : "Kate is still capable of being absolutely blown away by meeting someone like Emma. She must have thought 'what a great day at the office!'
"Kate is human and despite the incredible things she does in her career, she's still capable of feeling blown away and starstruck and she genuinely looked that in Emma's presence.
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"She's loved tennis for so many years and her children have even joined tennis clubs. It's a big love of hers so I bet she couldn't believe her luck to enjoy such a great experience with a record-breaker like Emma."
Kate came dressed for the occasion in a navy tennis skirt and tracksuit top and also brought her racket along with her.
As well as meeting Emma, Kate also chatted with fellow British US Open champions Joe Salisbury, who won the men's doubles title with American Rajeev Ram, and Gordon Reid and Alfie Hewett, the men's wheelchair doubles champions.
Emma, who is now ranked 22nd in the world, became the first qualifier to win one of the four majors when she claimed the US Open women's singles title earlier this month.
She also became the first British woman in 44 years to win a Grand Slam title, when she breezed past Canadian Leylah Fernandez in straight sets.
After her victory, Kate took to Twitter to send a rare personal tweet saying: "Huge congratulations @EmmaRaducanu on your stunning performances and historic Grand Slam victory! Incredible –we are all so proud of you. @leylahfernandez well done on your amazing achievements at this year’s #USOpen, it’s been a pleasure to watch. C"
The Queen also said it was a "remarkable achievement at such a young age" and added she was an inspiration for future tennis players.
She said: "I send my congratulations to you on your success in winning the United States Open Tennis Championships.
"It is a remarkable achievement at such a young age, and is testament to your hard work and dedication.
"I have no doubt your outstanding performance, and that of your opponent Leylah Fernandez, will inspire the next generation of tennis players. I send my warmest good wishes to you and your many supporters."
