Britain's Andy Murray defied "brutal conditions" to cruise into the second round of the US Open at Flushing Meadows.
Murray had to wait until the third day to play his first-round match against Slovakia's Lukas Lacko, but needed just one hour and 51 minutes to complete a 6-3 6-2 6-2 victory on Arthur Ashe Stadium.
With the temperature in New York approaching 100F - 10th seed Victoria Azarenka collapsed in the first set of her match with Gisela Dulko - Murray was delighted to get through in straight sets against the world number 71.
"I managed to get through in straight sets so I'm pleased, but it was a lot tougher than the score suggests," Murray said.
"Everyone in my box always tells me it's a lot tougher watching in the heat than playing but I'm not so sure. It was brutal conditions."
And there was more good news for Murray as Wimbledon finalist Tomas Berdych, the seventh seed and a potentially tough quarter-final opponent, was beaten in straight sets by France's Michael Llodra.