David Cameron hails Andy Murray's 'truly great victory' after Scot wins US Open David Cameron has hailed Andy Murray's US Grand Slam win a "truly great victory" that continued the golden summer of sport. The Prime Minister took to micro-blogging site Twitter to lead congratulations over the Scottish tennis player's historic win. Murray became the first British man to take a tennis Grand Slam in 76 years after beating Novak Djokovic in a gruelling five-set final in New York early today. Mr Cameron tweeted: "Delighted Andy Murray is continuing a golden summer of sport by winning the US Open. A truly great victory.