Novak Djokovic is grinding like a barista tanked up on a triple shot of espresso.

The Serb hangs on with percentage tennis and sinew-straining defence, before taking the final point with a magnificent forehand winner down the line.

More stubborn than grass stains in tennis whites that fella.

Andy Murray has recovered well from the loss of the opening set.

He rattles through another service game, safe and secure, and has looked the better player in the early stages of this set.

We said the same in the first though. Djokovic is a man who gains an extra yard of pace and 10mph of power when it matters most.

Image source, Getty Images

The chink in Novak Djokovic's armoury is an overhead that has never been as reliable as the rest of his arsenal.

A pair of muffed smashes, one on the bounce from the back of the court, give Andy Murray 0-30, before a double fault brings up 30-40 and a break point.

Next rally and Murray, on the run, has a gap down the down the line to aim for. He opts instead for a wrong-footer across court. It drifts long via the top of the net cord though and the Scot is left pointing at where he should have hit it.

Chance gone.

Is there anything as frightening to the British sports fan as the Kiss Cam by the way? Rest easy.

It is not coming to Wimbledon anytime soon judging by the reaction of Philip Brook, All England chairman, and his wife when on the big screen during the changeover. Mr Brook diving out of shot, while Mrs Brook smiled obliviously.

Now then.

A tentative overhead from Andy Murray is gobbled up by Novak Djokovic, swiping across court for 15-40 and two break points. The first is clawed back off the table by Murray and the second is recovered with a sublime top-spinning lob after Djokovic has been drawn in by a heavy net cord.

Deuce. Djokovic crashes away another winner and demands more volume from the crowd in appreciation. Again Murray repels the Serb from a fourth break point.

Djokovic plants wide on a fifth break point and Murray decides that enough is enough. Brutal service power whisks the rug from under Djokovic.

A big hold for Murray.

Can you imagine Andy Murray doing something really frustrating? Like putting together flat-pack furniture or scraping ice off the back of the freezer?

His neighbours for a mile around would be able to hear every angry word.

Anyway. Andy Murray guides away a backhand winner on return to apply a bit of pressure for 40-30, but Novak Djokovic uncorks a rocket ace to keep the second serve ticking along on serve.

Andy Murray could do with some of those solar eclipse specs. The solar rays are still firing straight down his retinas as he tries to serve from the sunny end of the court.

The Scot works up 40-0 as Novak Djokovic makes an iffy start, but his next serve gets the full treatment, whipped crosscourt for a clean winner.

That is the sort of aggression that Djokovic needed to make an early and morale-denting inroad into the Murray serve. But Djokovic doesn't look like he has got his mind fully on the job post-changeover and Murray wriggles off the hook.

Novak Djokovic wanders down the tunnel, with a bag over his shoulder and an ATP official in tow. Andy Murray follows as both players search for an air-conditioned oasis away from the on-court heat.

Murray began the match as if he believed that he not only could, but would, beat Djokovic.

Will that faith still be there where he appears for the second?

Image source, EPA

Djokovic with first use of the shady end of the court and he breaks Murray's first service point as the Scot presses long. And Murray's second go at teeing off also comes to grief as he pumps over the baseline. Three-love Djokovic as the balls swap ends, but the players stay where they started.

Four-love as Djokovic wins on serve, but a double fault and then a rasping Murray winner gives the Scot hope as they change over at 4-2 Djokovic with the mini-break.

Andy Murray can't quite close the gap. A forehand swatted into the net on his serve gives Novak Djokovic 6-3 and three set points. And one was all he needed. Djokovic lures his foe long to wrap up the opener.

Andy Murray does enough, just.

An ominous opening point as Murray, battling against the sun, reins his first serve in to 100mph and leaves it short.

Novak Djokovic attacks to back Murray into a corner at 0-30 on the next. Lovely disguise from Murray though as he strangles his follow-through to dink a winning dropshot for 15-30.

A titanic point follows, nip and tuck, cat and mouse, neither player wanting to push the limits. Murray is the first to summon up the courage, thumping a backhand cross-court and getting his reward with a smear of the line.

Murray battles on to 40-30, but a heavy netcord in Djokovic's favour pegs him back to deuce.

Murray though keeps the faith, keeps hitting out and we are into a tie-break.

Image source, EPA

Telegraph correspondent Simon Briggs:, external Novak breaks the pattern: holds from the far end to go 6-5 ahead. Murray to serve for tie-break; has never beaten ND after dropping 1st set.

Andy Murray on return, but at the advantageously shady end of the court.

With the first nine games won from that end, is the difference so pronounced that he has to break here?

If so, he has failed. He let Djokovic into a couple of points as well, plopping the ball into mid-court and allowing the Serb a free hit.

Andy Murray could do with a new bit of headwear as well apparently. The Scot fiddles with his cap after losing the first point with a poor netted volley.

But the racquet is still popping. An absolute bobby-dazzler of a serve - searing down the middle - put him 40-15 up and Djokovic drifts long on the next.

Murray duly swaps into a fresh cap at the changeover, deciding to leave the fedora for later.

Novak Djokovic whistles through a game from the shady end of the court to love.

Maybe Andy Murray could borrow coach Amelie Mauresmo's mirror shades to protect him from the glare. And bring a bit of a style edge to court.

Terry Peters:, external Murray always starts well against Novak, but I never feel he can dominate & see it through. Even if he wins, it's usually a slog!

Josh Hardy:, external 7 games, 7 won from the end not facing the sun!

Aidan Williams:, external The strategy is working from Murray, but he needs a bit more composure post break.

The server's end of the court - facing the sun - is clearly playing a lot differently to the opposite.

Andy Murray cuffs a couple of forehands into the net as he slides to 0-40 and struggles to pick up the flight.

He nibbles one point back with a whoppping great slap of a forehand, but strays long on the next point.

Just like earlier in the set, Murray's break goes unconsolidated.

Image source, Getty Images

Novak Djokovic can't keep his ball toss out of that pesky Miami sun and he then pretty much flushes his serve down the drain in a wretched game.

Andy Murray takes it to love, without the need to apply the pressure he brought to bear in previous games.

Djokovic is chuntering to his camp. Murray will have to see if he can serve into that sun any better in the next game.

This is starting to simmer.

Andy Murray scrapes a superb backhand winner off his bootlaces for 15-0, a tremendous fetch and swat volley for 30-0 and a sublime backhand block down the line for 40-0.

The television bods in charge of putting together the slow-motion replays are being put through their paces with that little gem collection.

He completes his hold to love and pumps his fist to a crowd, who for much of the year, are his local community.

Novak Djokovic's defences frustrate Andy Murray as the Scot cranks the power a little too high at 15-30 up, framing a forehand high into the cheap seats as he reaches for a little too much power and spin.

That was the rally the Scot could have done with. Djokovic, who just keeps churning out the quality like a battery bunny, makes his way to the stools ahead.

It is as if Andy Murray is using this match as a thought experiment: what if I played Novak Djokovic at full throttle on every point?

The Scot is attacking everything, whittling his margins down to millimetres and coming into the net at the slightest invitation.

Despite losing the break, it is a gameplan that looks good. Djokovic has not been given any platform to attack and only recovers the break thanks to a couple of loose Murray volleys that nine time out of ten would be winners.

Image source, Getty Images

"Umbrella and ice towel" Andy Murray barks to the umpire as he heads to his stool for the changeover.

Novak Djokovic meanwhile is chewing the collective ear of those in his box.

The body language and the scoreboard tell the same story - Murray has made the better start.