Tournament favourites Novak Djokovic and Serena Williams raced into the third round of the Australian Open on Wednesday, eager to get the job done and escape the oppressive heat that smothered Melbourne Park for a second day in a row.
Cloud cover and a gusting wind help keep temperatures just below the peak of 42.2 degrees Celsius they reached on Tuesday, when Canadian Frank Dancevic passed out and accused organisers forcing players to play in "inhumane" conditions.
Ivan Dodig became the 10th player to retire in the first three days of the tournament, though, when he was unable to complete his match against Bosnian Damir Dzumhur on one of the exposed outer courts.
"Today, 30 minutes after the match I could not walk," Croatian Dodig said. "There were 10 people around me. I was thinking I could maybe even die here.
"I think we deserve that somebody listens to the voice of the players."
Djokovic needed 107 minutes to take the second step on the path he hopes will take him to a fourth successive title by thrashing Argentine Leonardo Mayer 6-0 6-4 6-4 on Rod Laver Arena.
Williams, in the hunt for her sixth title, also hotfooted it into the third round with a one-sided 6-1 6-2 demolition of Vesna Dolonc before revealing her own particular visualisation technique for dealing with the heat.
"I just pretend I'm in Hawaii riding a wave, that's all I can do," she said after setting up an encounter with Daniela Hantuchova.
Djokovic was forced to retire from a match against Andy Roddick in another Melbourne heatwave five years ago but proved against Mayer that he was an altogether stronger player than in 2009.
"You don't want to spend too much time in the heat. You want to try to win as quick as possible," the second seed, who next faces Denis Istomin, told reporters.
"I prepared myself mentally for that. It's not just physically. Mentally you need to be tough enough to not give up and not think about what conditions can do to you."
World number one Williams was her usual mix of elegance in her dress and brutality in her play