Williams is going for everything - the power is incredible!

15-15.

Mies gives his pairing some respite with an ace.

Williams holds with two great serves.

They faced three break-points.

The third saved as Murray takes his place at the net and smacks a winner from here to Leicester Square.

Deuce.

The second saved as Guarachi volleys into the net.

One saved as Guarachi goes long with a double-hander down the line.

Three break points for Mies & Guarachi.

Cripes!

Not being funny, and with all due respect to Andy Murray, but Serena Williams could play these two on her own.

As soon as that's typed it's 0-30 as Williams double faults.

A slight delay before we start the deciding set. The fading light means they are closing the roof on Court One.

Once again Mies gets Guarachi's serve out of trouble.

Deuce.

But back comes Williams with another winner before the 28-year-old Chilean sends her forehand low into the netting.

Broken.

A huge roar of "C'MON" from Evans as a winner takes him to 30-0. Sousa is not going to go quietly, though, so what next?

Evans steps it up, that's what's next. Sousa takes the next point but a big Evans serve sets up two set-points.

Evans only needs one, and the crowd on Court One are on their feet.

Serena Williams is chiefing it here.

She stays in the middle of the T and punches a winner which wrong-foots the other pair.

Eventually SerAndy/Murena/MurWi bring up two more break points.

Tim Henman
Former British number one on BBC TV at Wimbledon

The way this match has unfolded, a fifth set would be fitting - but first Dan Evans has to hold.

Murray seals with another huge serve that comes off the frame of Alexa Guarachi's racquet and lands in Surrey.

When you have this many break points, in a match this close, then you have to make them count.

At the fourth time of asking, Dan does exactly that. Both players giving everything, and trying everything, but it is the Brit who takes the game and make the break, when Sousa droops a backhand into the net.

Image source, Getty Images

Another big serve brings up game point.

Before Murray shouts, "I got it, I got it, I got it" and sends his forehand into the netting.

He didn't "got it".

Andy Murray is starting to surf into a shot now.

15-15 on the Murray serve before Williams sends her shot into the net.

Jitters?

Removed as Murray produces an ace.

Because they always find the Andser?

Both Murray and Williams place ferocious power on their returns.

30s each on the Mies serve.

They then bring up another break point as Mies-Guarachi make an error.

Surely not again you guys?

But yes, thanks to a bit of net-cord luck, as Williams puts away a winner.