Andy Murray sealed a Davis Cup quarter-final berth for Great Britain with a straight-sets victory over American number one John Isner on Sunday.
Murray saved three set points before winning the opener on a tie-break and stayed in control to claim a 7-6 (7/4) 6-3 7-6 (7/4) victory in Glasgow.
The win clinched a 3-1 first round triumph over record 32-time champions the United States and set up a World Group quarter-final tie against France, at a venue to be decided in July.
Bob and Mike Bryan had kept the United States in with a chance as they held off Jamie Murray and Dom Inglot to win 6-3, 6-2, 3-6, 6-7 (8/10), 9-7 on Saturday.
Faced with a 2-0 deficit after Friday`s singles matches, the world`s number one doubles team got the job done, but not without a scare as Jamie Murray, the brother of Andy Murray, and Inglot recovered from two sets down.
Isner came out fighting as he looked to put Friday`s defeat, when he threw away a two-set lead to James Ward, behind him.
The world number 20 hit six aces in his first two service games and threatened to break Murray in the eighth game after the Scot posted two double faults.
But the home favourite saved a third break point with an ace and then moved to 4-4 as Isner missed seven break points in the first set.
Murray faced more difficulty in his next service game when another double fault set up two set points, but a wild forehand and a return into the net saw Isner pass up the chances.
Another opportunity soon came but again Murray produced an ace before wrapping up the game.
Isner made it 6-5 with his 12th ace of the contest but he started the subsequent tie-break with a double fault and could not break back.
Murray broke Isner in the sixth game of the second set with a stunning lob and he served to love to move two ahead.
Isner fought back in the third set but a couple of excellent backhand slices put him in trouble on his serve in the tie-break and Murray finished him off with a smash at the net before seeing out the win with another ace.
His triumph gave nine-time winners Britain, who last won the men`s team title in 1936, an unassailable lead before James Ward took on Donald Young in a dead rubber.
Britain will again be at home in the last eight on July 17-19 against France, who beat Germany 3-2 in Frankfurt after winning the first three rubbers, including singles triumphs for world top-20 players Gilles Simon and Gael Monfils.