PARIS - Andy Murray sealed a quarter-final berth for Great Britain in the Davis Cup on Sunday as Australia and Kazakhstan also joined already qualified France and Serbia.
Andy Murray of GB celebrates his victory over John Isner of the US in his Davis Cup singles match in Glasgow, Scotland on March 8, 2015
Defending champions Switzerland kept their quarter-final hopes alive by drawing level 2-2 with Belgium in Liege.
Scot Murray, the world number five, claimed a 7-6 (7/4), 6-3, 7-6 (7/4) victory over US number one John Isner in Glasgow.
The win clinched a 3-1 triumph and set up a final eight meeting in July against last year's runners-up France who advanced 3-2 past Germany in Frankfurt.
Bob and Mike Bryan had kept the United States in with a chance of a dramatic fightback as they held off a strong challenge from 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 Bryan brothers knew another loss would condemn the USA to an embarrassingly quick defeat.
The world's number one doubles team got the job done, but not without a scare as Murray, the brother of Davis Cup team-mate Andy Murray, and Inglot recovered from two sets down.
Switzerland, missing big guns Roger Federer and Stan Wawrinka, drew level 2-2 in Liege after Henri Laaksonen survived a five-setter against Belgian Steve Darcis 6-3, 3-6, 3-6, 7-6 (7/5), 6-1.
Michael Lammer will bid to seal the winning point for the Swiss when he plays David Goffin in Sunday's final reverse singles.
The winner will face either Canada or Japan.
Canada were in control in Vancouver after Daniel Nestor and Vasek Pospisil outlasted Japan's Go Soeda and Yasutaka Uchiyama 7-5, 2-6, 6-3, 3-6, 6-3 to put the hosts up 2-1.
- Australia face Kazakhstan -
That means 2014 US Open runner-up Kei Nishikori, ranked fourth in the world, will be fighting to keep Japan alive when he takes on world number six Milos Raonic in Sunday's first reverse singles match. Both Raonic and Nishikori won singles matches on Friday.
In Ostrava, Bernard Tomic beat Lukas Rosol in straight sets to give Australia an unbeatable 3-1 lead over the Czech Republic.
In a clash of the teams' number-one players, Tomic, the 22-year-old world number 38, saw off 29-year-old Rosol, ranked 31, 7-6 (7/4), 6-3, 7-6 (7/5) in two hours and 13 minutes.
Australia now take on Kazakhstan who squeezed past Italy 3-2 in Astana.
Aleksandr Nedovyesov, 28, sealed the winning point for the Kazakhs, beating Fabio Fognini 7-6 (7/5), 3-6, 4-6, 6-3, 7-5 after Mikhail Kukushkin earlier beat Andreas Seppi 7-6 (10/8), 6-0, 6-4.
Serbia, who had advanced unbeaten on Saturday, completed a 5-0 rout over Croatia in Kraljevo with Filip Krajinovic easing past Franko Skugor 6-4, 6-2 and Viktor Troicki beating Mate Delic 6-4, 6-3.
World number one Novak Djokovic and Nenad Zimonjic had sealed a quarter-final berth on Saturday by beating Franko Skugor and Marin Draganja 6-3, 6-4, 6-1.
Djokovic had easily beaten Mate Delic on Friday as the 2010 winners grabbed a 2-0 lead over a Croatia team missing injured US Open champion Marin Cilic.
Serbia will next face South American opposition with Brazil leading Argentina 2-1 in Buenos Aires after Marcelo Melo and Bruno Soares defeated Diego Sebastian Schwartzman and Carlos Berlocq 7-5, 6-3, 6-4 in doubles.
In Frankfurt, hosts Germany saved face by winning their final reverse singles rubbers against France -- Jan-Lennard Struff beating Nicolas Mahut 7-6 (8/6), 6-3, and Philipp Kohlschreiber sing off Gilles Simon 7-6 (7/5), 6-4.
France had assured themselves of a quarter-final berth when Julien Benneteau and Nicolas Mahut posted a 6-4, 6-3, 6-2 doubles success over Benjamin Becker and Andre Begemann on Saturday.
Gilles Simon and Gael Monfils had put France 2-0 up after beating Jan-Lennard Struff and Philipp Kohlschreiber respectively on Friday.