Emma Raducanu: Wow! Remarkable, glorious, legend – congratulations pour in for Briton's 'pretty, pretty good' US Open win

Teenage British tennis ace Emma Raducanu has completed one of the most astonishing feats in sport by beating Leylah Fernandez to win the US Open.

Her victory is being celebrated by many across the UK, with the Queen among the well-wishers.

"I send my congratulations to you on your success in winning the United States Open Tennis Championships," read the personal message from the monarch, posted on the Royal Family website.

"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."

Analysis - Win could be most unexpected British sporting story ever

A tweet from the official account of the Duke and Duchess of Cambridge congratulated the 18-year-old Briton and her 19-year-old Canadian opponent on their "amazing achievements".

Prince Charles and the Duchess of Cornwall joined in the royal congratulations, and wrote on their official Instagram: "What a fantastic achievement! We are all so proud.

"Well done to @leylahannietennis today too. An outstanding match between two inspiring young women - we can't wait to see where you go next."

Former British world number five, Jo Durie, said Raducanu's win had "got the whole world - let alone Britain - talking about tennis".

Crediting both the tournament winner and her opponent, Durie told Sky News: "The joy, the fun and the determination were all mixed up together. I just loved the whole thing."

England's national football teams and Manchester United also congratulated Raducanu on her 6-4 6-3 victory.

The official Twitter account for the Three Lions called it an "incredible achievement".

Team GB - Britain's Olympic organisation - wrote: "She's done it. @EmmaRaducanu makes British tennis history at the #USOpen with the most incredible performance."

Olympic gold medallist Matthew Pinsent wrote: "My new angle to parenting 'What do you mean the exam syllabus is hard? Emma Raducanu won a Slam and did her A levels in the same summer'."

TV presenter Gary Lineker also heralded Raducanu's "performance" and "triumph", while former Liverpool player Jamie Carragher wrote, "Pretty, pretty, pretty good".

"First time in my life I've ever tweeted whilst on air but my goodness what a performance, what a triumph, what an amazing young woman," Lineker said.

"Congratulations @EmmaRaducanu on a truly staggering achievement. US Open winner at 18 without losing a set. Extraordinarily fabulous."

Manchester City star Jack Grealish called her achievement "absolutely unbelievable" and an "inspiration to everyone".

The account for the Spice Girls tweeted: "Wow! Amazing tennis from @leylahfernandez and @EmmaRaducanu that's Girl Power right there!! Congratulations Emma."

Author and presenter Stephen Fry wrote: "What a glorious day for two remarkable young women. Yes, it may be 'only' sport, but in that 'only' there can be found so much of human joy, despair, glory, disappointment, wonder and hope. A brief flicker of light in a dark world."

TV personality Robert Rinder wrote: "Make sure you're very courageous. Be strong, be extremely kind, and above all, be humble" Serena Williams..(first grand slam 3 years before Emma Raducanu was born)."

Comedian Dara O Briain said: "Well that is both brilliant and ludicrously unbelievable. Well done Emma Raducanu."

8 Out Of 10 Cats host Jimmy Carr described the teenager as a "legend" and admitted he had become emotional through the match.

"Emma Raducanu - 20 straight sets. What a performance? What a legend? The game I love played beautifully," he tweeted.

"I think it's ok I shed a tear. Congratulations Emma & also well done on those A Levels."

Top Gear and Question of Sport host Paddy McGuinness said: Absolute scenes! Congratulations".

Former Countdown host Carol Vorderman added: "Amazing.....huge congratulations to our new Queen of Tennis."

TV presenter Piers Morgan wrote: "BREAKING: @EmmaRaducanu wins the US Open. This is one of the greatest achievements in British sporting history. Congrats, Emma - you champion."

Prime Minister Boris Johnson tweeted: "What a sensational match! Huge congratulations to @EmmaRaducanu You showed extraordinary skill, poise and guts and we are all hugely proud of you."

Labour leader Sir Keir Starmer tweeted: "What a winner. A true British hero. Congratulations @EmmaRaducanu on an inspirational win. From qualifier to champion without dropping a set. A phenomenal achievement."

Scottish First Minister Nicola Sturgeon called Raducanu "a star, a role model and a champion".

Four-time US Open winner Billie Jean King wrote: "What a terrific display of competition and maturity from two exceptional players. It is wonderful to see this generation living our dream. I can't remember a #USOpen with better crowd support. Thank you, NY, the greatest fans in the world. And congratulations, Emma!"

Retired American tennis great Martina Navratilova said: "A star is born- Emma Raducanu makes history - never has a qualifier won a major- men or women- and she is just getting started. And will never have to qualify again:) Leylah Fernandez will be back -both are champions but Emma has the trophy- well done!!!"

The Wimbledon, French Open and Australian Open Twitter accounts also offered their congratulations to Raducanu, with Wimbledon saying: "We're lost for words."