Andy Murray beat Bernard Tomic to put Great Britain into the Davis Cup final

Great Britain have reached the Davis Cup final for the first time in 37 years after Andy Murray defeated Bernard Tomic of Australia in straight sets to secure a 3-1 victory in Glasgow.

Bar a very minor blip towards the end of the first set, Murray was in sensational form, and he powered through the final two sets to complete a 7-5 6-3 6-2 win over the world No 23.

Victory capped another wonderful weekend for Murray, who also won his opening singles match on Friday in straight sets and then teamed up with his brother Jamie to win the crucial doubles rubber on Saturday.

Great Britain will now bid for a first Davis Cup win since 1936 and they will travel to Belgium for the final on November 27-29 after the Belgians beat Argentina 3-2.

Tomic fought hard in what turned out to be the decisive rubber in Glasgow but had no answer to Murray, who mixed fluent serving with outrageous stroke making and his usual characteristically brilliant defence.

He faltered at one point when serving for the first set but was immaculate otherwise, and, by the end, Tomic was having to work extremely hard simply to win points.

Murray only lost one point in his first two service games and led 3-1 when he converted a third break point opportunity, forcing Tomic to net after some good defensive work.

But Murray slipped up when he served for the set, double-faulting and then putting a backhand wide to give Tomic a reprieve.

The Aussie went on to level at 5-5 but he could not hold again at 5-6, Murray re-focusing to set up three set points and clinching it with a neat backhand drop shot.

As in the opener, Murray managed to break in game four of set two, and a memorable game it was, Murray bringing the crowd to their feet with a pair of brilliant backhand winners and then claiming an amazing point with some stunning defence, Tomic eventually netting a fairly routine overhead.

The bewildered Aussie then netted to cede the game and Murray did not falter on his own serve this time, helped by a steady stream of aces, including a pair to begin the game as held to love to take the set.

And it proved to be a very similar story in set three, Murray seizing the initiative by breaking to love in game three.

Tomic, who reached the Wimbledon quarter-finals as an 18-year-old, produced a gutsy hold to make it 2-3 but Murray was imperious on his own delivery and raced through the next game, producing a pair of flamboyant drop shot winners to emphasise his mastery.

And he then broke yet again after a lengthy seventh game, Tomic gamely saving a pair of break points but finally faltering after Murray hoisted a brilliant defensive lob.

At 5-2 Murray duly held to 15 to clinch the victory, Tomic putting a forehand wide at match point to end Australia's hopes of their first victory since 2003.

The match was over in an hour and three-quarters, Murray finishing with 15 aces, 38 total winners and just eight unforced errors.

As long as the dual Major winner and Olympic champion is fit for the final, Great Britain will surely fancy their chances.

Murray said on court: "I'm obviously delighted to get through. We knew it would be an incredibly difficult match to win, Australia have great depth and experience.

"We fought extremely hard, everyone played their part in the team and I'm glad to finish it off today.

"It's been a very tough weekend for me physically, and mentally it's draining in as well."

On the prospect of winning the trophy, Murray said: "It would be an incredible achievement. There's a long way to go and two incredibly difficult teams in front of us.

"It would be nice if Argentina could get through and we could play the final at home."

Great Britain's tie finished 3-2 after Australia's Thanasi Kokkinakis beat Dan Evans 7-5 6-4 in the 'dead rubber' that followed Murray's win over Tomic.

The other semi-final in Brussels went to a deciding rubber and Belgium secured the right to host the final when Steve Darcis beat Federico Delbonis 6-4 2-6 7-5 7-6 (7-3).