Group stage venues: Bologna, Glasgow, Hamburg and Valencia Dates: 13-18 September |
Coverage: Live TV coverage of Great Britain's matches on BBC iPlayer and the BBC Sport website and app, with selected live text commentaries and match reports on the website and app |
Leon Smith defended his team selection after the hosts failed to make the knockout stage of the competition.
Before this week's group stage in Glasgow, there was agreement that the 10-time champion had their strongest ever team.
The top and third ranked doubles players are Joe Salisbury and Neal Skupski.
Murray played with another person.
Do you think putting your two highest ranked singles players out there is controversial? Smith told the radio station that it wasn't true.
Does it make sense to put the number one doubles player in the world out there? It is not possible to say yes.
Is putting Andy Murray on the court controversial? I don't believe that. We believed it was the right thing to do.
Both of the Group D ties against the United States and the Netherlands were decided by the doubles rubber.
Smith might face questions about selection, in particular about not playing doubles specialist Skupski, because he and Murray showed they had the potential to play top-level doubles together.
They were runners-up in the men's doubles at the US Open last week.
Murray contributed 11 of the 12 points needed across singles and doubles for Great Britain to win the Davis Cup.
He said in the news conference that it was easy to think of all those things. The teams we lost to aren't settled doubles pairs.
Just days after winning the US Open title with him, Salisbury faced off against his usual partner, Rajeev Ram.
Murray said that he and Joe would be a better team if they played more together. We did not play two bad matches. We did well.
The United States and the Netherlands are through to the knockout stage of the World Cup after this week's results, leaving Great Britain to play a tie against Kazakhstan.
Murray said it was hard to get motivated. The way in which we have lost these two matches makes it more difficult.
There is no tennis on the final day of the format. There is tennis, but it is not important.
He wondered how many more chances he would have to help Great Britain after they couldn't deliver success on home soil.
The 35-year-old said he didn't know how many opportunities he would get to still be a part of the team.
There is a lot of depth in the doubles. It makes it harder because of that.