World number one Novak Djokovic beat Britain's Andy Murray 3-6, 6-1, 6-2, 6-4 to win his first French Open title and complete the career Grand Slam.Djokovic won his 12th major title and became the first man since Rod Laver in 1969 to hold all four Grand Slams at once.Second seed Murray played superbly to win the first set but could not convert a break point early in the second, and Djokovic took control to win in three hours.He becomes only the eighth man in history to have won all four of the sport's major singles prizes – and could yet match Laver's achievement of winning all four in a calendar year.