Great Britain captain Leon Smith says he can "shout loud and proud" about his team's strength as they look to beat Serbia - led by Novak Djokovic - for a place in the Davis Cup semi-finals.

Without injured pair Dan Evans and Andy Murray, Britain face Serbia in Malaga from 15:00 GMT on Thursday.

The tie will be shown on BBC iPlayer and the BBC Sport website and app.

"It's been a blow losing important players but we've also got unbelievable players," Smith said.

"One of the upsides is there is no ambiguity about the team selection, there is no second guessing.

"We know the team and it takes out the anxiety. Everyone is relaxed, focused and we use that to our advantage."

Djokovic, 36, is aiming to cap another extraordinary season, in which he won three majors and lost in the Wimbledon final, with more success in the Davis Cup.

First, Djokovic and his team-mates have to beat Great Britain - who the 24-time Grand Slam singles champion described as "one of the greatest tennis nations out there".

"It is a very strong team in this format. It's difficult for them to choose who to put on the court," the world number one said.

Great Britain, who last won the trophy in 2015, reached the Davis Cup knockout stages with a thrilling victory over France in September.

There are expected to be about 5,000 British fans in a near sell-out crowd at the 11,300-capacity Palacio de Deportes Martin Carpena in Malaga.

If they beat Serbia, Britain will face Italy or the Netherlands in the semi-finals on Saturday.

The champions of the 123-year-old men's team event will be decided in Sunday's showpiece.