Dan Evans proved the hero alongside doubles partner Neal Skupski on Sunday, the duo saving four match points before winning a nerve-wracking decider.
It means Team GB have qualified for the knockout stage of the men’s competition – widely known as the Final Eight – to be played in November.
Here’s everything you need to know about the next stage…
Davis Cup Finals 2023: When will the Final Eight be played?
The Davis Cup Finals Final Eight will be played between Tuesday 21 November 2023 and Sunday 26 November 2023.
Davis Cup Finals 2023: Where will the Final Eight be played?
The matches will be played in Malaga, Spain.
Palacio de Deportes, Jose Maria Martin Carpena, home of the Unicaja Malaga basketball team, will host the tournament.
Davis Cup Finals 2023: Which countries have qualified for the Final Eight?
After a week of action, eight nations will travel to Malaga in a bid to be crowned world champions.
Davis Cup Finals 2023: When is the draw for the Final Eight?
The draw for the quarter-finals took place on Tuesday, putting Great Britain up against Novak Djokovic’s Serbia.
Canada v Finland
Czech Republic v Australia
Italy v Netherlands
Serbia v Great Britain