Novak Djokovic, Rafael Nadal, Andy Murray shine on national duty

Novak Djokovic produced a masterful performance on Sunday to help Serbia roar back to defeat Canada 3-2 and set up a Davis Cup final against the Czech Republic.

On a weekend in which the sport's biggest names, with the exception of Roger Federer, put their individual schedules to one side and donned national colours instead, Djokovic helped ensure Serbia stayed on course to repeat their 2010 triumph.

Rafael Nadal, fresh from winning his 13th grand slam title at the US Open, helped Spain crush Ukraine to retain their place in the World Group while world number three Andy Murray steered Britain back among the elite with three points in his side's playoff victory over a weakened Croatia.

In a sport where individual prizes dominate the calendar the Davis Cup is often regarded as a sideshow but try telling that to the 15,000 fans who produced a deafening roar in Belgrade.

Serbia trailed 2-1 going into Sunday's two singles rubbers before Djokovic levelled the tie with a 7-6(1) 6-2 6-2 win over Milos Raonic before Janko Tipsarevic beat Vasek Pospisil in straight sets to spark wild celebrations.

Canada had dreamed of a first Davis Cup final appearance when Daniel Nestor and Pospisil won a doubles cliffhanger on Saturday but their hopes were ultimately crushed.

"This is one of the sweetest wins of my career and I hereby wish to thank my team mates for their support. See you right here in the final against the Czechs," Tipsarevic said.

"I think it will be a pretty open match against the Czech Republic. They have Tomas Berdych of course and have a strong doubles team. It's going to be very tough and I expect a very dramatic final."

There was nothing dramatic about the Czech's demolition of an Argentina side missing the muscle of Juan Martin del Potro. Berdych and Radek Stepanek had put the 2012 winners 2-0 ahead on Friday and then teamed up to win the Saturday doubles.

"It's definitely very exciting; Davis Cup means a lot, it's special for us, for the whole country," said Stepanek. "We loved so much delivering the trophy last year - it never gets old and we'd like to keep that trophy because it's beautiful." Like Murray, Nadal was playing in the Davis Cup for the first time in two years.

Showing no sign of fatigue after his US Open exploits he was unstoppable, winning his singles against Sergiy Stakhovsky for the loss of four games and then partnering Marc Lopez to doubles victory.

Murray beat Ivan Dodig 6-4 6-2 6-4 to give Britain a 3-1 lead and put them in next week's draw for the World Group. "I'm looking forward to playing against some of the biggest countries in the world it will be exciting and hopefully I can be part of it," Wimbledon champion Murray told Eurosport.

Switzerland and the Netherlands beat Ecuador and Austria respectively in their playoffs while Germany beat Brazil and Australia ended Poland's hopes of a first World Group appearance with a 4-1 victory in Warsaw. Belgium and Japan were the weekend's other playoff winners.

(Reporting by Martyn Herman; Editing by Alison Wildey and John Mehaffey)