Young double faults for the third time to slip to 30-30, and then pulls a forehand out wide to give Murray a break point... the Briton's return clips the baseline and has Young on the back foot, eventually bringing the error. Undeterred, the home fans show their support though the medium of a brass band.

Murray gives his back a thorough test on the second point with some lung-busting scrambling behind the baseline, stretching to make one last forehand, and a trademark cross-court backhand then catches out Young trying to sneak into the net. Another solid hold.

Image source, Getty Images

Young drags a woeful forehand into the net, and at 30-30 Murray wins a long, long rally with a heavy forehand winner into the corner for break point... only to flatten out a forehand a little too much and find the net himself. Young does well to come through and hold after Murray gets a drop volley wrong.

_chrisUK:, external If this match goes the way expected Donald Young can hardly blame Courier. Hasn't listened to him between games at all!

Jonathan Hextall:, external Great start from @andy_murray am settled in front of the TV on Friday night, come on team GB!!

Young slides into the net for a very makeable high forehand volley but pushes it wide, and Murray converts his first set point after 24 minutes. A total of 21 unforced errors makes life impossible for Young. It's hardly an intimidating atmosphere that the Brits are up against on a half-empty corner of a baseball stadium. "They're going up against the Superbowl this weekend, but it's a disappointing crowd," says John Lloyd on BBC3.

Young is under pressure again but claws his way to game point and hooks a good forehand across Murray for a winner. Courier retains his poker face, probably thinking up his next changeover speech.

An ace, and it's a love game for Murray. GB captain Leon Smith, wearing a tracksuit, has a few words for Murray at the changeover. Meanwhile, Courier is right in his player's ear, which might at least make Young want to prolong the games a bit more.

I think it's Jim Courier who's going to need a few soothing words at the changeovers soon. His second singles pick is getting hammered here, Murray moving to 0-40 with another sweeping backhand return to set up three break points... and Young obliging with a loose forehand on the first.

Murray had looked distinctly unenthusiastic in Melbourne last week when asked about the prospect of testing out his back on clay, although he had just lost in a Grand Slam, but the Scot is looking much brighter today as he races into a 3-0 lead with an easy hold.

Some pounding forehands into the corner get Murray to 30-30, and a thumping backhand winner of the return earns a break point.... Murray then goes at the Young backhand and draws the error. "It's all about biding your time and waiting for the American to miss," says Ross Hutchins on BBC3.

John Lloyd
Former British number one on BBC TV

"A suit and tie from Courier - I'd be interested to see if he goes for that in an away tie in Argentina."

A big cheer for Young when he gets to deuce, and it's a tough first game for Murray but he sees out with a big serve out wide. Courier on the prowl again. There has been plenty of talk about the clay court that the USA have chosen to use. It was only laid down in the corner of this baseball field in the last few days. "It's not really clay," said Murray beforehand. "It's slippy, it's quick and a lot quicker than the ones we play on in Monte Carlo, Rome and Madrid."

Image source, Getty Images

So first up we have Young v Murray, the world number 79 v the world number six. The Briton leads their head-to-head 2-1, but it was the American who won their last encounter when he caused a major upset in the first round at Indian Wells in 2011. Young is coming in off the back of a decent run to the third round of the Australian Open, but it would be a huge surprise if he were to mark his Davis Cup debut with a win over Murray.

Rod Laver, fresh from watching the final stages of the Australian Open in Melbourne last week, is in San Diego for the coin toss. Real tennis royalty at Petco Park. Jim Courier, fresh from his on-court interviewing in Melbourne, is prowling the tram lines, hands jammed into his suit pockets. He looks ready to grab the racquet off Young and have a go himself.

Ross Hutchins
British doubles player on BBC TV

"It's an incredible tie and I'd love to be out there. I think every person in that team thrives on Davis Cup. Andy hasn't always played but he really, really looks forward to the atmosphere."

Image source, Getty Images

It took 77 years, but last summer Andy Murray finally followed in Fred Perry's footsteps and won the Wimbledon title. Now another of Perry's achievements is ready to be equalled, this time after 79 years. It was 1935 when Great Britain last beat the United States in the Davis Cup, with the team of Perry, Bunny Austin, Patrick Hughes and Raymond Tuckey thrashing the Americans 5-0 on Wimbledon's Centre Court. Can Murray, James Ward, Colin Fleming and Dom Inglot match them in San Diego?