Image source, Getty Images

Right, Andy Murray is already half-way through an ice-bath and working out how he is going to spend his day off in the Big Apple.

We are going to park this live for the evening.

Thanks for your company and see you in the last 16.

 Mr H on Twitter: Unless he plays Young at some point, if Murray wins #USOpen2015, external he'd have had to beat 7 of the top 39. Ever been a tougher run?  

Andy Murray speaking to Sky Sports: "I think he played well with confidence when he was ahead. He was striking well when he got a break up in the first set. I thought I played well after that actually, mixing it up and using my variety well. It was big to get the win in straight sets in cooler conditions today after Adrian Mannerino in the last round. I have played well against Kevin Anderson in the past, but he won in Salem the other week and is looking good."

Three match points for Andy Murray at 40-0 up...

Andy Murray strikes like a cobra and will serve for a place in the last 16 next.

He is suddenly swarming all over the Thomaz Bellucci serve, punishing it for the first point and then keeping the pressure up to hustle and harry Bellucci out of the game for a break to love.

Bellucci looked out of his depth there, haring into the net to try and stem the tide, but only succeeding in making things easier for the Briton.

Andy Murray yanks a big forehand down towards Thomaz Bellucci and watches at his leisure as the Brazilian's lobbed fetch floats well long.

That is another service game wrapped up to love. Ten games in 40 minutes so far in this set.

This set is marching on remorselessly towards a tie-break. Neither man seems likely to back down on his serve.

The Arthur Ashe DJ has plucked the Rednexs' Cotton-Eyed Joe out of his record bag...

Andy Murray gets a little bogged down, losing the first point and then seeing the speed drain out of his second serve.

That part of his game is still where the world's best can turn the screw on him.

Thomaz Bellucci is not the world's best though and cannot punish the 70mph pattercake pies being sent down from the other end.

And Thomaz Bellucci returns fire with his own hold to love.

Plenty of good stuff crammed into that game though to rev the crowd up.

First Bellucci shows Andy Murray that he can do deft as well, dribbling a dreamy dropper out of reach for the first point.

He clinches the final point after a brilliant razzle-dazzle exchange of lightning-quick reflexes and jagging angles.

Andy Murray steams through another service game to love.

It is not all efficiency and attrition though. Murray closes the game out with a forehand dropper from the baseline that had more disguise than Carlos the Jackal.

Serve is dominating.

Thomaz Bellucci wraps up his own serve for the loss of just a single point.

Jeff Tarango, on BBC Radio 5 live sports extra, advises Murray to miss on purpose to conserve his energy for a surprise smash and grab raid on the Bellucci serve later in the set.

Softly, softly catchy Tommy as it were.

Image source, Getty Images

Andy Murray clouts a forehand down the line with vicious power to hold his own serve to love.

That particular tennis ball will be humming like a tuning fork after that punishment.

Thomaz Bellucci whistles through a service game to love. Nothing to see here, keep moving.

Time to sit and sip for the players.

Thomaz Bellucci spies a little chink in the Andy Murray serve as a double fault gives him 15-30.

But Bellucci cannot force the issue any further. His forehand streaks into the net with Murray looking vulnerable.

Neither player has started the third set well.

John Pierce on Twitter:  So far, so good for Murray. Clinical performance, focussed & business like. A five setter does concentrate the mind....  

Is Andy Murray going to follow the second-set template that proved so successful?

The Scot keeps the pressure high on Bellucci, milking him for errors and bring up 15-40 and two break points.

But Murray has let Bellucci off the peg a little there.

A careless cross-court forehand into the net at 30-40 looked complacent and Bellucci closes the game with a fine stretching volley at the net.

In the final US Open singles match to take place on Flushing Meadows' Grandstand court before it is demolished, Sabine Lisicki has beaten Barbora Strycova after trailing 5-1 in the final set.

A suitably stylish send-off.

And what a way to sign off on the second.

Andy Murray dashes out wide, and, on the stretch, finds a sublime cross-court angle to leave Thomaz Bellucci's shoulders slumped.

The Brazilian is staring at the ugly rear end of a two sets to love scoreline.

Stick a fork in this second set, it is done.

Thomaz Bellucci looks like the belief has been pummelled out of him by Andy Murray's consistency after the opener.