Tennis fans have awoken to the news that Andy Murray has reached the quarter-finals of the US Open, delivering a record-breaking serve as he demolished Grigor Dimitrov.

Murray produced a flawless performance in Arthur Ashe Stadium, and Dimitrov was simply unable to cope as the Scot strolled to a 6-1 6-2 6-2 victory.

The 29-year-old was broken only once in the whole match and produced the fastest serve of his career, at 141 miles per hour, to win the opening set.

First set to @andy_murray! 👏🏻 Come on! 💪🏻 If that score can be same for the next 2 sets that would be amazing! #USOpen🇺🇸 #Round4 #Tennis 🎾🇬🇧

— Laura (@Laura_Loz) September 5, 2016

@andy_murray 😍😍😍 your serve and net game is INSANE. 🙌🏽💙🎾 #usopen #Murray

— Abby Malecha (@ammalecha) September 6, 2016

Andy #Murray was different gravy against #Dimitrov & even threw in a 141mph fastest ever serve in #USOpen demolition job. #Nishikori next!

— Raz Mirza (@RazMirza) September 6, 2016

“I played extremely well, tactically I played a good match,” Murray said after the game.

“It’s definitely up there, I played well today, made very few unforced errors and made it tough for Grigor.”

Andy Murray is playing some incredible defense. He just manages to find his way to get his racquet on every ball #USOpen

— Karl Nacion (@chicco_n) September 6, 2016

That was one of the best performance's I have ever seen from Andy Murray!! There was no stopping him tonight!! #USOpen #unbelievable

— Matt Searle (@MattiusPAFC) September 6, 2016

Respect to @andy_murray for an near exhibition style win over Dimitrov! Amazing tennis. And quick, so I got 5 hours sleep. #BackTheBrits

— Liz Henwood (@Pipsissiwa) September 6, 2016

On his record-breaking serve, Murray added: “I served one at 145 in San Jose once but the next day they recalibrated the gun because it was completely wrong.

“Tonight’s was the fastest serve I’ve hit. The other one was here at the US Open, 138. I think it was lucky. I only did it once. I’m not expecting to do it again.”

(Darron Cummings/AP/PA)

TheScot has now reached the last eight in 22 out of his last 23 grand slams and he will face Japan’s sixth seed Kei Nishikori for a place in the semi-finals.