Huge moment. A mini-break for Anderson as Murray gives a forehand too much and goes long. The set is on Anderson's strings.

Sensational stuff. Murray serves...the pair become embroiled in lengthy baseline rally. An Anderson backhand clips the tape, Murray stays calm and produces a sublime backhand winner to end the 29-shot rally.

The whole court in shadow, Anderson serves and volleys, putting away a formality of a forehand. Pressure on Murray.

Murray manages to return a booming Anderson serve, then tries to guide back the next shot. But it loops over the lanky South African's head and past the baseline. Muzza has a word with the umpire at the changeover about the disruption that led to his double fault.

Image source, AFP

Anderson bamboozled by the Murray serve, can't get it back. He employed the frying pan, crouching down, almost taking one in the face. How bizarre. On serve.

Murray swings round to give someone in the crowd a steely glare as he bounces the ball before his second serve. Oh no. Murray slams that into the net after being disrupted. Double fault and Anderson wipes out that mini-break.

As the clock ticks to the hour mark, Murray turns the air blue. Anderson misses his first serve, Murray steps in on the second... Anderson dumps into the net. Mini-break for Murray.

Anderson serve...his first effort swerves down the T. His second effort returned by Murray who is left wrongfooted by the 15th-seed. The Briton threatens to smash his racquet into the blue acrylic surface...

Forehand into the corner from Murray. Mini-hold to begin with.

Over to you Mr Anderson. Murray snaffles the first point as he looks to nab the break he wants to clinch the first set. But Anderson digs deep to leave Murray struggling to return his serve, then bounds up to the net to complete the point. That tactic is re-employed by the South African, Murray giving up the point as a high return is smashed to safety.

Murray isn't really in this game to be honest as Anderson cleans up. Tie-break time!

Jill Craybas
Former WTA Tour professional

"Murray got a little bit of help from Anderson. There were two forehand errors. The first was a short gift, then one sprayed long."

Oh hello! Anderson has a sniff of the break. After forcing Murray into a forehand error, the giant South African goes on the attack against the Murray second serve. He gallops towards the delivery, smashing back a fierce forehand that Murray cannot clear the tape with. That's 0-30.

But Murray roars back, wrongfooting Anderson as he lumbers across court and then smashing another winner after a well-constructed point.

That means we hear the first Murray roar of "Come on!" Anderson goes wide with a crosscourt forehand for 40-30 before Murray completes a gutsy hold.

Anderson eases into a 30-0 lead before he fails to overturn a Murray return that clings on to the baseline whitewash. One keen spectator is asked politely not to hang over the fence, before Anderson regains focus to dish out some red-hot serving that burns Murray.

Not much between these two at the moment. A baseline exchange at 30-15 could be half a chance for Anderson, but he gently probes the Murray backhand without really making the Briton sweat. And he is punished as Murray's digs out an inch-perfect crosscourt winner. That leaves him one away from the hold, and the third seed suspects he might have sweeped up with a whipped forehand that is called out. Murray challenges - and the video replay tell us that Murray was wrong. A quick pick-up from Murray leaves Anderson scrambling and the big man cannot get down quick enough. Pressure back on Anderson - can he hold out to stop Murray winning the opener?

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Jill Craybas
Former WTA Tour professional

"After the service game when he had a break point against him, Anderson has held easily. He's feeling the rhythm on that serve. It's dead even."

Murray readjusts his white baseball cap, taps his left hand with his racket and prepares to face the Anderson serve. But he barely sees yellow as the ball flies past him out wide. Murray expertly guides the next serve back over the lowest part of the tape, only to clip the net with his next return. Anderson goes wide to the Murray forehand for another ace and then whips another serve down the flank to wrap up an easy hold.

Jeff Tarango
Former professional tennis player on BBC Radio 5 live sports extra

"This is the game for Andy to break. If he doesn't, we'll be in a breaker in about eight or nine minutes. He's got to find the way. It's part of the chess-type challenge of this match."

Another Murray serve, another steady hold. The Briton is being gifted free points by the South African, who creeps up to 12 in the unforced errors count. Murray is caught off-guard as Anderson digs out a inside-out backhand for 40-30, but another ugly Anderson forehand goes long on game point.

Image source, AFP

Jeff Tarango
Former professional tennis player on BBC Radio 5 live sports extra

"I like what Federer did against Anderson. He stood about a foot inside the service line and half-volleyed. Kevin serves just as hard as Isner, maybe harder."

Brief delay as a few latecomers saunter back into the Louis Armstrong Stadium after the changeover. We don't have all the time in the world...

And neither has Kevin Anderson. The 15th seed rattles off his service game to love, three aces and another bruiser which stings the Murray backhand.

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