Andy Murray will lead Great Britain’s defence of the Davis Cup in the first-round tie against Japan in Birmingham from 4-6 March.
The 28-year-old world number two will be joined by brother Jamie, Kyle Edmund, Dominic Inglot and Dan Evans.
GB coach Leon Smith said: “It will be a test but I’m confident in our team and we’re lucky to have another home tie.”
Britain won the Davis Cup for the first time since 1936 with victory over Belgium in Ghent last November.
Smith, who will make his final selections at the draw on 3 March, added: “Japan have a very strong team, progressed well in recent years and with Kei Nishikori have an established top-10 player.”
Murray’s wife Kim Sears gave birth to the couple’s first child this month and Smith said: “Andy has once again demonstrated his commitment to the team and his country in making himself available to play, especially so soon after becoming a father.”