Andy Murray is in a little bit of a pinch at 15-30, but Thomaz Bellucci is not playing as well as he was in the first set.

The Brazilian pushes a ham-fisted volley wide to allow Murray to wrap up the game.

Meanwhile, Jeff Tarango on BBC Radio 5 live sports extra says that he thinks that Kevin Anderson will beat Murray in the next round should the Scot win tonight.

"Anderson is ready for a breakthrough and Andy is starting to look a little worn after a tough month," he says.

Listen in via the audio icon at the top of this page.

Duck Sauce's 2010 Barbara Streisand ear-worm is the least Wimbledon bit of music that I have heard at changeover so far at the US Open.

Thomaz Bellucci seals the game to kick off a close contender for that crown as the Arthur Ashe DJ fires up some of Justin Timberlake's Sexyback.

Image source, Getty Images

Actor Ray Liota, of Goodfellas fame, is in the house and acknowledges the crowd with a regal wave of the hand, showing off a chunky platinum band on his pinkie.

On court below his pricey perch, Andy Murray puts away a mid-court forehand to win the game. 

Thomaz Bellucci keeps his cards on the table in the second set.

He is walking a tightrope as it stands though. A double-break would surely be fatal for this second set, even this early in proceedings.

Andy Murray is chugging on all cylinders now.

He slams the door shut on any hopes that Thomaz Bellucci had of an immediate break-back.

With all the force of one of those ne'er-do-wells being chased by Roger Cook.

A reference for the 30-pluses there.

Image source, Getty

Andy Murray is out of the blocks like a whippet with a gale-force tailwind.

Three quick points crumble his way as a combination of lactic and tension start to tug at Thomaz Bellucci's swinging arm.

Three break points. Murray misses the first two as, with cash in the bank, he goes for broke.

30-40. But Bellucci's gremlins return. The Brazilian attempts to smuggle a second serve out of Murray's winner-striking zone. And succeeds only in planting it into the net.

Double fault for Bellucci, a break for Murray and, possibly, a turning point in the match.

Nick, London via text:  I'm getting the coffee on... Something tells me this is going to be a long night. 

Image source, Getty Images

Thomaz Bellucci made Andy Murray work hard for that game. Just as he has for the whole set.

The Brazilian works Murray out of court as he switches fire from the backhand to forehand wing for 30-30.

But finally, after 50 minutes, Murray is over the line in the opener.

Thomaz Bellucci coughs up an ugly forehand, swatting clean over the baseline to give Murray 30-40 and a break point.

A ding-donging rally ensues, back and forth, Murray scraping and scrimping out wide as Bellucci ups the pace.

Bellucci advances, Murray cracks a pancake-flat forehand pass over the wire, and the Brazilian can only fend into the net.

Murray to serve for the opening set next.

The first Hawk-Eye challenge of the match comes from Andy Murray at 40-30 up. 

He is questioning the eyesight of a line-judge who looks like an evening news anchorman - all silver hair and chestnut tan. And the Dan Rather lookalike is right by half an inch or so.

Another tick for your Eye-Spy Andy Murray book. He lets out his first 'C'mon' of the match as Thomaz Bellucci duffs a groundstroke into the net.

And Murray makes good his escape after that little bit of gamesmanship.

A massive hold for Thomaz Bellucci as he wrestles an epic, roller-coaster of a game his way to keep Murray at bay and the set on serve.

How much has that missed chance and marathon game taken out of the British number one?

Image source, Getty

Oh delicious.

Andy Murray tickles in a forehand drop-shot that Thomaz Bellucci chases in vain. Naughty, naught, very naughty.

That shot followed a pinpoint running forehand winner down the line from Murray.

But Bellucci is just about hanging tough.

Back to deuce again. How many? I've lost count. A lot.

Andy Murray's groundstrokes are starting to simmer.

A little more zip, a touch more pop and Thomaz Bellucci is suddenly surviving rather than thriving in the rallies.

The Brazilian has seen off three break points, with Murray twice pushing his luck with a little too much power as he tucks into a second serve.

Deuce...

MR H on Twitter: , externalMurray's power just doesn't seem that great compared to allegedly lesser opponents these days.

Oh my. The first prime cut from Andy Murray's shot-making selection as the Scot flicks a cross-court winner from a position where most players would struggle to scrape back into play.

Very nice and a first comfortable hold of the match for Murray. 

Image source, Reuters

Andy Murray pulls a Get Out of Jail Free card out of the pile.

Thomaz Bellucci chucks down two rank double faults to allow Murray to deuce and then advantage and break point.

Bellucci plonks down a pedestrian tee-off, just to make sure, on the next point, but blinks first as the two players trade groundstrokes from the back.

Quick, the boss is looking.

Camp Murray snap their spines straight simultaneously, all nodding and applauding supportively as their man looks up towards the players' box.

He needs the help.

A sluggish second serve that didn't even make it over the net and Murray double-faults to 0-30.

It is the same scoreline that he faced in the opening game.

The cat is not so easily back in the bag this time though.

Thomaz Bellucci darts in and wrong-foots Murray for 15-40 and two break points.

First serve missed. Second serve in. Murray to the net. Bellucci goes to pass...and nets.

But a forehand into the top of the net from Murray hands his man the first break of the match.

Is that some Thai dye? Either that or Thomaz Bellucci's shirt has been mangled by the hot wash.

The Brazilian has shown that he means business in the opening two games, rattling on to a 40-0 lead on his own serve and only allowing Murray one point nibbled back.

Andy Murray flops a forehand long on the opening point as he comes in to try and put away a thick net cord top-edge.

Whomph! A pinging backhand winner from Thomaz Bellucci down the line and that is one that Murray can just watch and admire.

0-30 and a bit of pickle.

But via an ace and a walloped mid-court forehand, Murray has locked down the opening game.

It is either Kevin Anderson or Dominic Thiem for the winner of this match by the way.