2021 US Open final: Queen and Prime Minister Boris Johnson lead tributes to "extraordinarily fabulous" Emma Raducanu

Emma Raducanu holds the trophy as she celebrates winning the women's singles final. PIC: PA

The 18-year-old, who won Saturday's US Open final in straight sets, was praised for her "poise and guts" during the historic match.

Following her win, the Queen congratulated the teenager on her "remarkable achievement at such a young age" and said her and opponent Leylah Fernandez, would "inspire the next generation of tennis players."

Boris Johnson praised Raducanu's "extraordinary poise and guts" during the "sensational match."

Emma Raducanu in action during the women's singles final on day twelve of the US Open. PIC: PA

A tweet from the official account of the Duke and Duchess of Cambridge congratulated the teenager and her opponent on their "amazing achievements" at the tournament.

"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"

A personal message from the monarch, posted on the Royal Family website, read: "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."

The Prime Minister wrote: "What a sensational match! Huge congratulations to @EmmaRaducanu.

"You showed extraordinary skill, poise and guts and we are all hugely proud of you."

Celebrity fans also added their voices to the long list of congratulations and praised both teenagers for their performances.

Pop group The Spice Girls tweeted "Wow! Amazing tennis from @leylahfernandez and @EmmaRaducanu that's Girl Power right there!!

"Congratulations Emma."

TV presenter Gary Lineker said: "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," he said.

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

"Extraordinarily fabulous."

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."

Fellow Cats panellist Jon Richardson added: "What a treat and a privilege that was to watch.

"Thank goodness for sport in a messed up world and thank goodness for Emma Raducanu. Absolutely superb."

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

But people also praised the standard of play on both sides of the net.

First Minister of Scotland Nicola Sturgeon added her congratulations.

"Just incredible! @EmmaRaducanu is a star, a role model and a champion. Congratulations!" she tweeted.

"I suspect tonight is one of these sporting occasions that will be talked about for decades to come.

"Two great players who will no doubt dominate women's tennis for years to come."

TV presenter Nick Knowles tweeted: "The quality of the us open tennis women's final is epic!"

Piers Morgan wrote: "BREAKING: ?@EmmaRaducanu? wins the US Open.

"This is one of the greatest achievements in British sporting history. Congrats, Emma - you champion."

Earlier in the match, leader of the Liberal Democrats Sir Ed Davey said: "What an absolutely amazing match - and what an amazing British athlete we have in Emma Raducanu."