Andy Murray roars into US Open third round

World number two Andy Murray made himself heard at the US Open on Thursday, downing tenacious Spaniard Marcel Granollers in straight sets to reach the third round.

With pounding rain creating a din under the new $150 million roof of the Arthur Ashestadium, Murray battled through a tense first set to triumph 6-4, 6-1, 6-4.

“We’re lucky that we get to play under the roof because otherwise there’d be no tennis,” said Murray, whose match went on as all action stopped on the outside courts. “It’s good for everyone.”

But in the 22,000-seat stadium, the acoustics of the roof are proving problematic, and Murray admitted the echoing noise made things difficult.

“It was tough, you couldn’t really hear the ball at all,” said Murray, who is trying to become just the fourth man to reach all four Grand Slam finals in the same year.