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Murray is almost talking us through this match now, providing his own commentary after every point. Leon Smith, creeping around like Smithers tends to Mr Burns, encouragingly applauds. When Murray pushes a pass wide, he blasts at the court, and Nishikori holds on. Business end of the set.

Andrew Castle
BBC Sport tennis commentator

"Murray is sending a message out to opponent, umpire and whoever else will listen.

"Well pumped up now."

Smith is out of his seat after every point, Murray almost begging Nishikori to challenge another ace. When the game is wrapped up, Murray's hollering is heard by opponent, umpire, coach and the chap manning the car park.

Andrew Castle
BBC Sport tennis commentator

Image source, Getty Images

"It was miles out but has to be done in a clear and timely manner."

Murray, at the far end, is springing into his serve, but Nishikori is doing well to reach returns and asking the Scot to play none more shot. 30-30, Murray a hair's breadth wide of landing a 149mph serve - would that have been the biggest of his career? Hello, what's happened here? Murray thinks he's won the game, but a very late Nishikori challenge sees the serve called out - miles out. Leon Smith goes to war on behalf of his charge...

Nishikori needs to find something to stop the Murray tide, and to silence the crowd, who still aren't bored of the "let's go, Andy" chant. He puffs out his cheeks at 40-15, sealing the game thanks to Murray's loose return. You just feel that Murray is prowling, mind...

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Andrew Yee: Murray has gone up a gear. Great shots last 5-10 mins.

Roy: Murray moving up the gears now.

Andrew Castle
BBC Sport tennis commentator

"The overhead and second serve of Nishikori, they really are bad."

Image source, Reuters

John Lloyd
Former Davis Cup finalist on BBC One

"What a good passage of tennis this has been for Murray, in the last ten minutes or so."

From looking like he needed a good lie-down, Murray is alive, helped by the fact that Nishikori's overhead is as reliable as a laptop bought from Del Trotter. Now flying, Murray pulls out a whipping, curving forehand pass that defies physics like a Roberto Carlos free-kick. From 0-2, Murray is at 3-2.

Have a butcher's at the moment Murray won the first set...

John Lloyd
Former Davis Cup finalist on BBC One

"What a shot. That is the best shot he has hit the whole day. On break point, from that position on the court, that was absolutely outstanding."

What. A. Shot. Nishikori expecting a cross-courter, Murray climbing into a backhand, sending it down the line like Bart Simpson sliding down a handrail. Awesome stuff, drawing gasps from the crowd. All square. 

Murray still pushing, though. A huge cry of "come on" as he earns another chance to break...

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Hello, what's happened here? Nishikori serving break point down. Murray into the net, hammering his foot so hard he breaks his racquet. They don't make em like they used to...

Nishikori serves from the far end, countless Union flags pinned high in the stand behind him. 15-30, Murray with a big chance to attack the Nishikori second serve, but putting too much pudding on a volley into open court. A big miss. He chews his thumb, then had Nishikori going long. Break back point...

John Lloyd
Former Davis Cup finalist on BBC One

"To me it looks like Nishikori is trying to be a bit more aggressive. It looks like he has decided he has to attack more than he did in the first set."

If Murray is tired, then Nishikori has the fresh face and sharpness of the Karate Kid. Murray, weathered stubble around his face, belts down a nuclear serve, then benefits from a dumped Nishikori overhead. Long from the Japanese, then a very tired Murray run and backhand winner. The Scot holds, but you worry for him if this goes deep.

John Lloyd
Former Davis Cup finalist on BBC One

"Nishikori is just lightning around the court."

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