The Duchess of Cambridge met with tennis champion Emma Raducanu today - and suffered an "awkward" blunder on arriving.
Kate was at the Lawn Tennis Association's National Tennis Centre in London to congratulate 18-year-old tennis sensation Emma on her stunning US Open title.
She 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.
When she entered the room the meet the group, she went to offer her hand before but quickly drew it away remembering she wasn't allowed to.
She said: "Are we shaking hands? I don't want to break your training bubbles.
"It's really awkward, you don't know quite whether to do it. It is the same with face masks, whether to put them on or whether to take them off.
"You never know whether to hug people, congratulate them or shake hands."
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One of those at the meeting added: "I'll have one!" before Kate gave him a hug gesture.
She continued: But amazing, guys honestly, congratulations."
As well as chatting to Emma, Kate also got competitive by going up against her 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.
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.
