Great Britain have won the Davis Cup for the first time since 1936 after Andy Murray beat Belgium's David Goffin to clinch the decisive point in Ghent.Murray won 6-3 7-5 6-3 to give the visitors an unassailable 3-1 lead in the best of five tie. Britain have now won the team Tennis title 10 times, while Murray adds the Davis Cup to his other major titles at Wimbledon, the US Open and the Olympic Games.