The Queen congratulated Emma Raducanu after the 18-year-old won the US Open title with a resounding victory in New York.
Raducanu beat fellow teenager Leylah Fernandez 6-4 6-3 to end Britain’s 44-year wait for a women’s Grand Slam champion.
“I send you my congratulations on your success,” said the Queen.
“This is a remarkable achievement at such a young age, and a testament to your hard work and dedication.”
In a statement, the monarch added: “I have no doubt that your outstanding performance and that of your opponent Leylah Fernandez will inspire the next generation of tennis players.”
UK Prime Minister Boris Johnson tweeted: “What a sensational game! Congratulations to Emma Raducanu.
“You have displayed extraordinary skill, poise and courage and we are all extremely proud of you.”
It was a historic night for the new British sports star who led pundits to predict big things and seemingly crippled the UK …
‘A star is born’, ‘a future world number one’ – praise pouring in for Raducanu
Virginia Wade, who was present at Arthur Ashe Stadium to witness Raducanu’s victory, was the last British woman to win a Grand Slam singles title – at Wimbledon in 1977.
In an unprecedented race, Raducanu became the first qualifier to win a major tournament and did so without losing a set.
“A star is born,” said tennis legend Martina Navratilova. “Emma Raducanu is making history and she’s just getting started.”
Former UK number one Greg Rusedski, speaking to Amazon Prime, added: “She’s going to be a multiple Grand Slam winner, a world number one.
“She’s the real deal and it’s a breath of fresh air for an 18-year-old to win the event.”
Raducanu, whose fourth round race at Wimbledon earlier this summer is his only other Grand Slam appearance, will win £ 1.8million and drop from 150th to 23rd in the world rankings.
Former Wimbledon champion Pat Cash called her success “mind-boggling.”
“This [a qualifier winning a Grand Slam] is something I never could have believed would happen, ”the Australian told BBC Radio 5 Live.
“I think I’m going to wake up. It’s so amazing. It’s amazing to see this performance.”
Tim Henman, another ex-UK number one who was out in court in his working role for Amazon, said: “She will earn more [Grand Slams], she is so good.
“It’s not a flash in the pan or a fairy tale. She plays ‘top five tennis.’
“Her world is going to be turned upside down but she has good people around her and it will be a hell of a ride if she can stay injury-free.”
“Delay the MOTD!” »& Subtly check scores at weddings – UK seized by Raducanu
Raducanu won the title with a classy performance in a high-caliber match against Canada’s Fernandez that lasted nearly two hours.
In the end, it looks like the UK was on hold, with plenty of people tweeting asking for the match of the day to be delayed.
Presenter Gary Lineker tweeted: “This is the first time in my life that I have tweeted on air, but my God, what a performance, what a triumph, what an incredible young woman.”
Throughout the match, BBC Sport also received countless messages from fans who were nervously following the action.
“I’m currently at a wedding, subtly checking the score. COME EMMA !! From everyone at Will and Josie’s wedding,” a texter said.
It started a theme …
Manny in Manchester added: “I’m currently at a wedding NOT subtly checking the score. Sorry Chloe. Come on Emma.”
And Ben in London said, “We’re all at Laura and George’s wedding – don’t stop me now! I can’t check the score! Come on Raducanu !!!”