Andy Murray cruised into the third round of the Miami Open with a comfortable 6-4 6-2 win over America’s Donald Young.

Murray had only lost once to Young and he got off to a blistering start, breaking the American’s serve twice and holding his own to claim an early 4-0 lead.

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Murray looked on course for a whitewash first set when he opened up another two break points in the fifth game but Young dug deep to ensure he at least had one notch on the scoreboard.

The 25-year-old left-hander seemed to grow in confidence as he capitalised on some windy conditions and an incorrect Murray challenge to break back, winning three consecutive games to trail only 5-4.

Murray cut a frustrated figure but he recovered his composure to serve out the first set, before claiming a break in the opening game of the second.

A superb backhand pass gave Murray another break point at 3-1 and while Young held off temporarily, the Scot took advantage two points later to take a three-game lead.

Unforced errors continued to undermine Young’s hopes of a fightback and while he pulled another game back to make it 5-2, Murray served out the match.

Meanwhile, in the women’s competition, third seed Simona Halep had to recover after losing the second set to earn a 6-4, 2-6, 6-1 win over Czech Nicole Vaidisova.