• Murray, the world No4, wins 6-3, 6-4• Novak Djokovic beats Martin Klizan in three setsAndy Murray brushed aside Colombia’s Santiago Giraldo with the minimum of fuss in the third round of the Miami Open . A single break earned the Scot the first set before an explosive start to the second helped him complete a 6-3, 6-4 victory in one hour and 24 minutes.The world No4 continued the commanding form he displayed in seeing off Donald Young on Friday and his opponent, ranked 31st in the world, had no answer.