England have been humbled in record-breaking heat, leaving Nathan Lyon well placed to spin Australia to a 4-0 Ashes series win on day five of the final Test in Sydney.
The tourists reached 4-93 at stumps on Sunday, requiring a further 210 runs to make Australia bat again.
Heat monitors at the SCG reported a 'feels like' temperature of 57.6C. Bureau of Meteorology records suggest there hasn't been such a hot day of Ashes cricket in Australia since a 43.1C heatwave struck Adelaide some 110 years ago.
Joe Root's side baked in the sun during the worst of it, fetching balls from all over the field as Shaun Marsh (156) and Mitch Marsh (101) shared a 169-run stand and two emotional hugs after each brother reached three figures.
Australia batted for 193 overs, making it the longest Ashes innings from either side since 1993, before Steve Smith put England out of their misery during the post-lunch session.
Smith called his teammates in at 7-649, claiming a first-innings lead of 303 runs.
Lyon then snared two wickets, meaning all four members of Australia's attack have captured at least 20 scalps this series, and there will be plenty more there for the taking on Monday.
"The wicket is definitely suiting him," Shaun Marsh said.
"He bowled really well today and showed his class. Hopefully tomorrow he can come out and get a few breakthroughs early."
England assistant coach Paul Farbrace admitted his side has struggled to escape Lyon's "strangehold" throughout the series.
"We found him hard to rotate against and he's gone on to have a massive effect on this series and probably, along with Steve Smith, been their star performer," Farbrace said.
"He's allowed their seamers to have decent periods of rest but he's always been a threat, always taken important wickets."
England's openers departed in 5.5 overs as their side slipped to 2-15.
Mark Stoneman wasted a review after being trapped lbw for a duck by Mitchell Starc, while Alastair Cook was undone on 10 by a beautiful delivery from Lyon that turned sharply and hit the top of off stump.
Lyon trapped Dawid Malan lbw after tea, while Smith held a juggled slips catch as yet another loose stroke from James Vince brought about his downfall.
A day-four finish appeared on the cards at 4-68 but Root, who will resume on 42 and is yet to stroke a boundary in 124 deliveries, battled through a painful finger injury and showed the sort of resilience that his side have lacked at key moments this summer.
Farbrace indicated Root was "certain" to bat on Monday.
Earlier, Shaun Marsh was run out following a mix-up with Tim Paine.
Marsh was involved in another miscommunication between the wickets, with Mitch Marsh, as his brother brought up his century. It prompted an emotive show of disbelief from Smith on the players' balcony.
Mitch Marsh was bowled by the next ball he faced, delivered by childhood friend Tom Curran.