Fed'r/Alleg (Swi) v R'dski/Murray (GB)

7-5 2-6 7-6 6-2

Overall score in the tie:

Switzerland 3-0 GB (best of five)

Game-by-game updates from 1200 BST:

Federer & Allegro 7-5 2-6 7-6 (7-1) 6-2 Rusedski & Murray
Allegro makes no mistake as holding service to claim victory and an unassailable 3-0 lead in the Davis Cup tie.

Federer & Allegro 7-5 2-6 7-6 (7-1) 5-2 Rusedski & Murray
Rusedski produces a business-like service game as the Brits desperately cling on.

Federer & Allegro 7-5 2-6 7-6 (7-1) 5-1 Rusedski & Murray
Federer piles on the misery for the British duo easing to a comfortable service game as the Swiss near their third consecutive victory in two days.

Federer & Allegro 7-5 2-6 7-6 (7-1) 4-1 Rusedski & Murray
Federer and Allegro deliver a telling blow to Britain's Davis Cup hopes with a second break of serve to leave the Swiss just two games away from victory.

Federer & Allegro 7-5 2-6 7-6 (7-1) 3-1 Rusedski & Murray
Rusedski again questions a let call as the Swiss save a break point to maintain their lead.

Federer & Allegro 7-5 2-6 7-6 (7-1) 2-1 Rusedski & Murray
Rusedski races through his service game to keep the Swiss in Britain's sights, despite being a break down.

Federer & Allegro 7-5 2-6 7-6 (7-1) 2-0 Rusedski & Murray
The Federer serve looks in trouble again as the Swiss is forced to save two break points before closing out the game with a sliced backhand at the net.

Federer & Allegro 7-5 2-6 7-6 (7-1) 1-0 Rusedski & Murray
A rollercoaster ride for Murray, who saves two break points after two double faults and a dumped volley, but eventually succumbs on the third break.

THIRD SET:

Federer & Allegro 7-5 2-6 7-6 (7-1) Rusedski & Murray
The Swiss grab two mini-breaks to race to a 5-0 lead. Murray finally claims Britain's first service point, but their opponents claims next point to earn five set points - Allegro converts the first with an angled winner at the net.

Federer & Allegro 7-5 2-6 6-6 Rusedski & Murray
Murray seals his service game to take the third set to a gripping tie-break.

Federer & Allegro 7-5 2-6 6-5 Rusedski & Murray
Britain fail to take the initial against the weak link in Switzerland's duo. Allegro holds on to leave Murray serving to stay in the third set.

Federer & Allegro 7-5 2-6 5-5 Rusedski & Murray
The Brits move back level as the the third set nears a nail-biting conclusion with Rusedski just holding serve.

Federer & Allegro 7-5 2-6 5-4 Rusedski & Murray
Federer is left to rue a missed opportunity as Britain break back with Rusedski threading his forehand down the line past Allegro.

Federer & Allegro 7-5 2-6 5-3 Rusedski & Murray
The Brits refuse to make it easy for the Swiss to claim the third set. Murray's serve stutters to 30-30 but the young Scot reasserts his authority to take the next two points and game, leaving Federer to serve for the set.

Federer & Allegro 7-5 2-6 5-2 Rusedski & Murray
Tension rises as Rusedski challenges the umpire over an uncalled let, before baiting the Swiss players to own up to it. But it is to no avail, costing the Brits a potential break point. GB earn another, but Allegro clings on to maintain the Swiss lead.

Federer & Allegro 7-5 2-6 4-2 Rusedski & Murray
After a shaky start at 15-15, Rusedski regains control to secure the game and keep the Swiss in their sights.

Federer & Allegro 7-5 2-6 4-1 Rusedski & Murray
Another love service game confirms Federer's class as the Swiss maintain their grip on the set.

Federer & Allegro 7-5 2-6 3-1 Rusedski & Murray
Murray holds service, conceding just one point as the Brits cling on in the third set.

Federer & Allegro 7-5 2-6 3-0 Rusedski & Murray
Federer has clearly stepped up a gear as he helps Allegro comfortably hold service and take a three-game lead.

Federer & Allegro 7-5 2-6 2-0 Rusedski & Murray
A shaky start to the third set for Britain as a double fault and dumped volley from Rusedski helps hand three break points to the Swiss. The Canadian-born Brit digs the Brits out of the hole to save two but can do nothing as Allegro drives the third down the middle to go a break ahead.

Federer & Allegro 7-5 2-6 1-0 Rusedski & Murray
Federer eases through a love service game as the Swiss open the serving for the third set.

SECOND SET:

Federer & Allegro 7-5 2-6 Rusedski & Murray
Britain are back in it as Murray closes out his service game to take the second set and level the scores.

Federer & Allegro 7-5 2-5 Rusedski & Murray
Britain are left serving for the set, their first in this weekend, after a brilliant forehand cross-court winner from Rusedski on Allegro's serve. But it is all credit to Murray, twice having the audacity to return straight to Federer.

Federer & Allegro 7-5 2-4 Rusedski & Murray
Britain hang on to their lead, despite another close call on Rusedski's serve. Rusedski struggles with his ball toss and hits a double fault to hand the Swiss a break point. But the Brits rally to hold service.

Federer & Allegro 7-5 2-3 Rusedski & Murray
Britain threaten to grab a double-break after earning two more break points against the Swiss but Federer regains his focus to close out the game.

Federer & Allegro 7-5 1-3 Rusedski & Murray
Britain manage to consolidate their break after a scrappy battle to save three break points of their own. Murray's drop volley forces Allegro to hit long before Federer returns the Scot's serve into the net to the seal the game for the Brits.

Federer & Allegro 7-5 1-2 Rusedski & Murray
Britain are suddenly in the driving seat after converting their first break point of the second set on Allegro's serve. Murray provides the winning return as Britain seek to cancel out the one-set deficit.

Federer & Allegro 7-5 1-1 Rusedski & Murray
Another close shave for the Brits who are forced to save four break points but, after some terrific volleying, Rusedski pulls out his big serve to give GB advantage before Murray's cross-court forehand slips past Federer to seal the game.

Federer & Allegro 7-5 1-0 Rusedski & Murray
Federer maintains the Swiss momentum by clinching the opening service game of the second set.

FIRST SET:

Federer & Allegro 7-5 Rusedski & Murray
Switzerland convert the second of two break points to clinch the first set and pile on the pressure for the struggling Brits. Murray slumps to 15-40 on his serve when Rusedski fails to connect with his backhand, The Swiss then have no trouble closing out for the set.

Federer & Allegro 6-5 Rusedski & Murray
Allegro holds his serve for the Swiss to move ahead once again as the first set nears its gripping climax.

Federer & Allegro 5-5 Rusedski & Murray
Britain are forced to ride out a difficult storm as they save two set points after going 15-40 down on Rusedski's serve. For the Swiss it is a missed opportunity as Allegro hits long and Federer drives Murray's volley straight into the net on set point.

Federer & Allegro 5-4 Rusedski & Murray
Federer takes a dismissal swipe at the Brits' fighting display with a devastating love service game.

Federer & Allegro 4-4 Rusedski & Murray
A terrible start for Murray sees the Scot go 0-30 down on his serve but four consecutive points seals the game for the Brits.

Federer & Allegro 4-3 Rusedski & Murray
Britain miss a vital opportunity to take control of the opening set as the Swiss are forced to save the first two break points of the match. Exceptional returning from Murray earns GB the first break at 40-30 but Rusedski then hits long. A tightly angled cross-court backhand from the Canadian-born Briton then earns the visitors a second but this time Murray hits wide to send the scores back to deuce. Allegro then serves out for the game.

Federer & Allegro 3-3 Rusedski & Murray
The Swiss capitalise on the Brits' lack of playing together, driving a winner straight down the middle past Rusedski and Murray. But Rusedski retains control on his serve to level the scores.

Federer & Allegro 3-2 Rusedski & Murray
GB miss the chance to pull level at 30-30 as Murray plays the wrong shot, returning straight back to Federer at the net, alllowing the Swiss to calmly dispatch the winner to earn game point. The world number one then converts with an unreturnable serve to Murray.

Federer & Allegro 2-2 Rusedski & Murray
Murray breezes to a comfortable opening service game to keep the scores level.

Federer & Allegro 2-1 Rusedski & Murray
An intriguing use of tactics sees Federer deciding to back up his team-mate's serve by standing in the middle of court. Allegro stills struggles, pushed to 40-30 before a Rusedski wayward return seals the game for the server.

Federer & Allegro 1-1 Rusedski & Murray
Rusedski demonstrates the powerful serve he is renowned for as Britain claim their opening service game. There are signs the duo could trouble the Swiss with Murray twice smashing winners down the middle.

Federer & Allegro 1-0 Rusedski & Murray
World number one Federer signals Switzerland's intent with a comfortable opening service game, conceding just one point through an unforced error.

1204: Both pairs of players are on court warming up with Andy Murray and Greg Rusedski knowing everything hinges on the outcome of this match.

Switzerland hold a 2-0 lead in the tie in Geneva after Roger Federer and Stanislas Wawrinka won the opening singles matches on Friday.